| nr |
titel |
auteur |
tijdschrift |
jaar |
jaarg. |
afl. |
pagina('s) |
type |
| 1 |
Absolute Quantitation in Neurological PET: Do We Need it?
|
Strother, S. C.
|
|
1991
|
|
1_suppl |
p. A3-A16
|
artikel
|
| 2 |
Applications of Radiotracer Imaging Poster Abstracts
|
|
|
2012
|
|
1_suppl |
p. S41-S99
|
artikel
|
| 3 |
A Regional Covariance Approach to the Analysis of Functional Patterns in Positron Emission Tomographic Data
|
Moeller, J. R.
|
|
1991
|
|
1_suppl |
p. A121-A135
|
artikel
|
| 4 |
Assessment of Accuracy of PET Utilizing a 3-D Phantom to Simulate the Activity Distribution of [18F]Fluorodeoxyglucose Uptake in the Human Brain
|
Hoffman, Edward J.
|
|
1991
|
|
1_suppl |
p. A17-A25
|
artikel
|
| 5 |
Assessment of Goals and Obstacles in Data Acquisition and Analysis from Emission Tomography: Report of a Series of International Workshops
|
Mazziotta, John C.
|
|
1987
|
|
1_suppl |
p. S1-S3
|
artikel
|
| 6 |
Assessment of the Arterial Input Curve for [99mTc]-d,l-HM-PAO by Rapid Octanol Extraction
|
Andersen, Allan R.
|
|
1988
|
|
1_suppl |
p. S23-S30
|
artikel
|
| 7 |
Author Index
|
|
|
2017
|
|
1_suppl |
p. 506-538
|
artikel
|
| 8 |
Author Index
|
|
|
2012
|
|
1_suppl |
p. S192-S196
|
artikel
|
| 9 |
Author Index
|
|
|
2016
|
|
1_suppl |
p. 821-856
|
artikel
|
| 10 |
Brain Oral Session: Blood Brain Barrier
|
|
|
2009
|
|
1_suppl |
p. S82-S86
|
artikel
|
| 11 |
Brain Oral Session: Brain Imaging
|
|
|
2009
|
|
1_suppl |
p. S87-S92
|
artikel
|
| 12 |
Brain Oral Session: Cerebrovascular Regulation
|
|
|
2009
|
|
1_suppl |
p. S26-S30
|
artikel
|
| 13 |
Brain Oral Session: Cortical Spreading Depression
|
|
|
2009
|
|
1_suppl |
p. S53-S58
|
artikel
|
| 14 |
Brain Oral Session: Experimental Cerebral Ischemia—Neuroinflammation
|
|
|
2009
|
|
1_suppl |
p. S93-S98
|
artikel
|
| 15 |
Brain Oral Session: Experimental Cerebral Ischemia: Neuroprotection
|
|
|
2009
|
|
1_suppl |
p. S77-S81
|
artikel
|
| 16 |
Brain Oral Session: Experimental Stroke and Cerebral Ischemia 1
|
|
|
2009
|
|
1_suppl |
p. S37-S41
|
artikel
|
| 17 |
Brain Oral Session: Experimental Stroke and Cerebral Ischemia 2
|
|
|
2009
|
|
1_suppl |
p. S48-S52
|
artikel
|
| 18 |
Brain Oral Session: Functional Brain Imaging
|
|
|
2009
|
|
1_suppl |
p. S105-S109
|
artikel
|
| 19 |
Brain Oral Session: Neonatal Ischemia
|
|
|
2009
|
|
1_suppl |
p. S99-S104
|
artikel
|
| 20 |
Brain Oral Session: Neurological Diseases
|
|
|
2009
|
|
1_suppl |
p. S42-S47
|
artikel
|
| 21 |
Brain Oral Session: Neurovascular Unit
|
|
|
2009
|
|
1_suppl |
p. S16-S20
|
artikel
|
| 22 |
Brain Oral Session: Traumatic Brain Injury
|
|
|
2009
|
|
1_suppl |
p. S21-S25
|
artikel
|
| 23 |
Brain Oral Session: Traumatic Brain Injury—Metabolism
|
|
|
2009
|
|
1_suppl |
p. S31-S36
|
artikel
|
| 24 |
Brain PET Oral 4: in vivo Pharmacology I—Dopamine and Norepinephrine
|
|
|
2009
|
|
1_suppl |
p. S59-S62
|
artikel
|
| 25 |
Brain PET Oral 5: in vivo Pharmacology II—Serotonin
|
|
|
2009
|
|
1_suppl |
p. S63-S67
|
artikel
|
| 26 |
Brain PET Oral 3: Miscellaneous Targets
|
|
|
2009
|
|
1_suppl |
p. S11-S15
|
artikel
|
| 27 |
Brain PET Oral 6: Neurodegenerative Disorders
|
|
|
2009
|
|
1_suppl |
p. S68-S72
|
artikel
|
| 28 |
Brain PET Oral 2: Novel Radiotracers and Modeling
|
|
|
2009
|
|
1_suppl |
p. S6-S10
|
artikel
|
| 29 |
Brain PET Oral 1: PET Image Reconstruction and Processing
|
|
|
2009
|
|
1_suppl |
p. S1-S5
|
artikel
|
| 30 |
BrainPET Poster Session: Brain Imaging—MRI/fMRI
|
|
|
2009
|
|
1_suppl |
p. S600-S623
|
artikel
|
| 31 |
BrainPET Poster Session: Brain Imaging—Stroke
|
|
|
2009
|
|
1_suppl |
p. S624-S634
|
artikel
|
| 32 |
BrainPET Poster Session: in vivo Pharmacology and Clinical Applications
|
|
|
2009
|
|
1_suppl |
p. S346-S359
|
artikel
|
| 33 |
BrainPET Poster Session: Kinetic Modeling
|
|
|
2009
|
|
1_suppl |
p. S312-S328
|
artikel
|
| 34 |
BrainPET Poster Session: Molecular Brain Imaging—Clinical Applications
|
|
|
2009
|
|
1_suppl |
p. S581-S599
|
artikel
|
| 35 |
BrainPET Poster Session: PET Acquisition and Processing
|
|
|
2009
|
|
1_suppl |
p. S329-S345
|
artikel
|
| 36 |
BrainPET Poster Session: Radiotracers and Quantification
|
|
|
2009
|
|
1_suppl |
p. S360-S375
|
artikel
|
| 37 |
Brain PET Poster Sessions PP01-M01 to PP02-N07
|
|
|
2019
|
|
1_suppl |
p. 524-608
|
artikel
|
| 38 |
Brain Poster Session: Angiogenesis
|
|
|
2009
|
|
1_suppl |
p. S376-S380
|
artikel
|
| 39 |
Brain Poster Session: Blood-Brain Barrier
|
|
|
2009
|
|
1_suppl |
p. S474-S489
|
artikel
|
| 40 |
Brain Poster Session: Brain Edema and Water Transport
|
|
|
2009
|
|
1_suppl |
p. S490-S493
|
artikel
|
| 41 |
Brain Poster Session: Brain Imaging—Neurologic Disease
|
|
|
2009
|
|
1_suppl |
p. S568-S580
|
artikel
|
| 42 |
Brain Poster Session: Cell Signaling
|
|
|
2009
|
|
1_suppl |
p. S494-S497
|
artikel
|
| 43 |
Brain Poster Session: Cerebral Metabolic Regulation
|
|
|
2009
|
|
1_suppl |
p. S381-S383
|
artikel
|
| 44 |
Brain Poster Session: Cerebral Vascular Regulation
|
|
|
2009
|
|
1_suppl |
p. S110-S154
|
artikel
|
| 45 |
Brain Poster Session: Epilepsy
|
|
|
2009
|
|
1_suppl |
p. S209-S212
|
artikel
|
| 46 |
Brain Poster Session: Experimental Cerebral Ischemia—Blood Flow and Metabolism
|
|
|
2009
|
|
1_suppl |
p. S394-S406
|
artikel
|
| 47 |
Brain Poster Session: Experimental Cerebral Ischemia—Global Ischemia
|
|
|
2009
|
|
1_suppl |
p. S407-S414
|
artikel
|
| 48 |
Brain Poster Session: Experimental Cerebral Ischemia—in vitro
|
|
|
2009
|
|
1_suppl |
p. S155-S165
|
artikel
|
| 49 |
Brain Poster Session: Experimental Cerebral Ischemia—Vascular and Endothelial
|
|
|
2009
|
|
1_suppl |
p. S166-S178
|
artikel
|
| 50 |
Brain Poster Session: Experimental Stroke and Cerebral Ischemia
|
|
|
2009
|
|
1_suppl |
p. S213-S257
|
artikel
|
| 51 |
Brain Poster Session: Glial Functions
|
|
|
2009
|
|
1_suppl |
p. S258-S268
|
artikel
|
| 52 |
Brain Poster Session: Hemorrhagic Transformation
|
|
|
2009
|
|
1_suppl |
p. S415-S419
|
artikel
|
| 53 |
Brain Poster Session: Inflammation
|
|
|
2009
|
|
1_suppl |
p. S498-S513
|
artikel
|
| 54 |
Brain Poster Session: Ischemic Preconditioning
|
|
|
2009
|
|
1_suppl |
p. S514-S522
|
artikel
|
| 55 |
Brain Poster Session: Migraine
|
|
|
2009
|
|
1_suppl |
p. S269-S272
|
artikel
|
| 56 |
Brain Poster Session: Mitochondria
|
|
|
2009
|
|
1_suppl |
p. S523-S525
|
artikel
|
| 57 |
Brain Poster Session: Neonatal Ischemia
|
|
|
2009
|
|
1_suppl |
p. S526-S543
|
artikel
|
| 58 |
Brain Poster Session: Neurogenesis
|
|
|
2009
|
|
1_suppl |
p. S544-S552
|
artikel
|
| 59 |
Brain Poster Session: Neurologic Disease
|
|
|
2009
|
|
1_suppl |
p. S273-S287
|
artikel
|
| 60 |
Brain Poster Session: Neuroprotection
|
|
|
2009
|
|
1_suppl |
p. S420-S454
|
artikel
|
| 61 |
Brain Poster Session: Neuroprotection—Hypothermia
|
|
|
2009
|
|
1_suppl |
p. S179-S186
|
artikel
|
| 62 |
Brain Poster Session: Neurovascular Unit in Health and Disease
|
|
|
2009
|
|
1_suppl |
p. S187-S196
|
artikel
|
| 63 |
Brain Poster Session: Oxidative Mechanisms
|
|
|
2009
|
|
1_suppl |
p. S455-S466
|
artikel
|
| 64 |
Brain Poster Session: rt-PA
|
|
|
2009
|
|
1_suppl |
p. S467-S468
|
artikel
|
| 65 |
Brain Poster Session: Spreading Depression
|
|
|
2009
|
|
1_suppl |
p. S288-S299
|
artikel
|
| 66 |
Brain Poster Session: Stem Cells and Gene Therapy
|
|
|
2009
|
|
1_suppl |
p. S553-S564
|
artikel
|
| 67 |
Brain Poster Session: Subarachnoid Hemorrhage
|
|
|
2009
|
|
1_suppl |
p. S300-S311
|
artikel
|
| 68 |
Brain Poster Session: Transcriptional Regulation
|
|
|
2009
|
|
1_suppl |
p. S565-S567
|
artikel
|
| 69 |
Brain Poster Session: Translational Studies
|
|
|
2009
|
|
1_suppl |
p. S469-S473
|
artikel
|
| 70 |
Brain Poster Session: Traumatic Brain Injury
|
|
|
2009
|
|
1_suppl |
p. S197-S208
|
artikel
|
| 71 |
B. Stereotaxy as a Means of Anatomical Localization in Physiological Brain Images: Proposals for Further Validation
|
Fox, Peter T.
|
|
1987
|
|
1_suppl |
p. S18-S20
|
artikel
|
| 72 |
CBF Tomograms with [99mTc-HM-PAO in Patients with Dementia (Alzheimer Type and HIV) and Parkinson's Disease—Initial Results
|
Costa, D. C.
|
|
1988
|
|
1_suppl |
p. S109-S115
|
artikel
|
| 73 |
Conclusion
|
|
|
1987
|
|
1_suppl |
p. S28-S31
|
artikel
|
| 74 |
Conference Sponsorships
|
|
|
2012
|
|
1_suppl |
p. S4
|
artikel
|
| 75 |
Cover Page and Contents
|
|
|
2016
|
|
1_suppl |
p. 1
|
artikel
|
| 76 |
C. The Use of Magnetic Resonance Imaging to Establish an Anatomical Data Base for other Neuroimaging Modalities
|
Kertesz, Andrew
|
|
1987
|
|
1_suppl |
p. S20-S22
|
artikel
|
| 77 |
D. Computerized Three-Dimensional Imaging of the Brain
|
Herman, Gabor T.
|
|
1987
|
|
1_suppl |
p. S22-S23
|
artikel
|
| 78 |
Determination of Flow and Rate Constants in a Kinetic Model of [99mTc]-Hexamethyl-Propylene Amine Oxime in the Human Brain
|
Matsuda, Hiroshi
|
|
1988
|
|
1_suppl |
p. S61-S68
|
artikel
|
| 79 |
Discussion of PET Workshop Reports, Including Recommendations of PET Data Analysis Working Group
|
Rapoport, Stanley I.
|
|
1991
|
|
1_suppl |
p. A140-A146
|
artikel
|
| 80 |
Effects of Percent Thresholding on the Extraction of [18F]Fluorodeoxyglucose Positron Emission Tomographic Region-of-Interest Data
|
Rottenberg, D. A.
|
|
1991
|
|
1_suppl |
p. A83-A88
|
artikel
|
| 81 |
E. Morphometrics for Functional Imaging Studies
|
Bookstein, Fred L.
|
|
1987
|
|
1_suppl |
p. S23-S27
|
artikel
|
| 82 |
Extraction of [99mTc]—d,l-HM-PAO across the Blood—Brain Barrier
|
Andersen, Allan R.
|
|
1988
|
|
1_suppl |
p. S44-S51
|
artikel
|
| 83 |
Factors Affecting Accuracy and Precision in PET Volume Imaging
|
Karp, Joel S.
|
|
1991
|
|
1_suppl |
p. A38-A44
|
artikel
|
| 84 |
Functional Interactions in the Brain: Use of Correlations between Regional Metabolic Rates
|
Horwitz, Barry
|
|
1991
|
|
1_suppl |
p. A114-A120
|
artikel
|
| 85 |
III. Biomathematical Aspects of Physiological Brain Imaging
|
Holden, James E.
|
|
1987
|
|
1_suppl |
p. S11-S13
|
artikel
|
| 86 |
II. Quality Control Issues
|
Larson, Steven M.
|
|
1987
|
|
1_suppl |
p. S8-S10
|
artikel
|
| 87 |
Initial Cerebral HM-PAO Distribution Compared to LCBF: Use of a Model Which Considers Cerebral HM-PAO Trapping Kinetics
|
Lear, James L.
|
|
1988
|
|
1_suppl |
p. S31-S37
|
artikel
|
| 88 |
International Scientific Advisory Committee
|
|
|
2012
|
|
1_suppl |
p. S2
|
artikel
|
| 89 |
I. The Role of Physics in Positron Emission Tomography and Single-Photon Emission Computed Tomography Image Processing
|
Hoffman, Edward J.
|
|
1987
|
|
1_suppl |
p. S4-S7
|
artikel
|
| 90 |
IV. Minority Opinion on the Extraction of Regional Values from Functional Brain Images
|
Clark, Campbell
|
|
1987
|
|
1_suppl |
p. S13-S16
|
artikel
|
| 91 |
Lassen Award: Lassen Award Symposium
|
|
|
2009
|
|
1_suppl |
p. S73-S76
|
artikel
|
| 92 |
Late Breaking Abstracts
|
|
|
2019
|
|
1_suppl |
p. 609-637
|
artikel
|
| 93 |
Linearization Correction of 99mTc-Labeled Hexamethyl-Propylene Amine Oxime (HM-PAO) Image in Terms of Regional CBF Distribution: Comparison to C15O2 Inhalation Steady-State Method Measured by Positron Emission Tomography
|
Inugami, Atsushi
|
|
1988
|
|
1_suppl |
p. S52-S60
|
artikel
|
| 94 |
Local Organizing Committee
|
|
|
2012
|
|
1_suppl |
p. S1
|
artikel
|
| 95 |
Methodology Poster Abstracts
|
|
|
2012
|
|
1_suppl |
p. S128-S191
|
artikel
|
| 96 |
MRI-PET Correlation in Three Dimensions Using a Volume-of-Interest (VOI) Atlas
|
Evans, A. C.
|
|
1991
|
|
1_suppl |
p. A69-A78
|
artikel
|
| 97 |
[99mTc]-HM-PAO SPECT in Parkinson's Disease
|
Pizzolato, G.
|
|
1988
|
|
1_suppl |
p. S101-S108
|
artikel
|
| 98 |
Non–Registered Abstracts
|
|
|
2016
|
|
1_suppl |
p. 739-820
|
artikel
|
| 99 |
Novel Radiotracer Development Poster Abstracts
|
|
|
2012
|
|
1_suppl |
p. S100-S127
|
artikel
|
| 100 |
Oral Abstracts
|
|
|
2016
|
|
1_suppl |
p. 1-173
|
artikel
|
| 101 |
Oral Presentation Abstracts
|
|
|
2012
|
|
1_suppl |
p. S13-S40
|
artikel
|
| 102 |
Physiological ROI Definition by Image Subtraction
|
Fox, Peter T.
|
|
1991
|
|
1_suppl |
p. A79-A82
|
artikel
|
| 103 |
Poster Abstracts
|
|
|
2016
|
|
1_suppl |
p. 174-738
|
artikel
|
| 104 |
Poster Sessions
|
|
|
2012
|
|
1_suppl |
p. S8-S12
|
artikel
|
| 105 |
Poster Viewing Session I
|
|
|
2017
|
|
1_suppl |
p. 98-168
|
artikel
|
| 106 |
Poster Viewing Session II
|
|
|
2017
|
|
1_suppl |
p. 169-239
|
artikel
|
| 107 |
Poster Viewing Session III
|
|
|
2017
|
|
1_suppl |
p. 240-311
|
artikel
|
| 108 |
Poster Viewing Session IV
|
|
|
2017
|
|
1_suppl |
p. 312-377
|
artikel
|
| 109 |
Poster Viewing Sessions PA00-A01 to PA00-A49
|
|
|
2019
|
|
1_suppl |
p. 124-166
|
artikel
|
| 110 |
Poster Viewing Sessions PB01-B01 to PB03-V09
|
|
|
2019
|
|
1_suppl |
p. 167-523
|
artikel
|
| 111 |
Poster Viewing Session V
|
|
|
2017
|
|
1_suppl |
p. 378-444
|
artikel
|
| 112 |
Poster Viewing Session VI
|
|
|
2017
|
|
1_suppl |
p. 445-505
|
artikel
|
| 113 |
Precision and Accuracy Considerations of Physiological Quantitation in PET
|
Carson, Richard E.
|
|
1991
|
|
1_suppl |
p. A45-A50
|
artikel
|
| 114 |
Proceedings of the PET Data Analysis Workshop New York, New York, 1–2 May 1989
|
Rottenberg, D. A.
|
|
1991
|
|
1_suppl |
p. A1-A2
|
artikel
|
| 115 |
Quantitative Comparison of Measurements of Cerebral Glucose Metabolic Rate Made with Two Positron Cameras
|
Grady, Cheryl L.
|
|
1991
|
|
1_suppl |
p. A57-A63
|
artikel
|
| 116 |
Quantitative Measurements of Cerebral Blood Flow Using SPECT and [99mTc]-d,l-HM-PAO Compared to Xenon-133
|
Andersen, Allan R.
|
|
1988
|
|
1_suppl |
p. S69-S81
|
artikel
|
| 117 |
Region of Interest Issues: The Relationship between Structure and Function in the Brain
|
Mazziotta, John C.
|
|
1991
|
|
1_suppl |
p. A51-A56
|
artikel
|
| 118 |
Retention of [99mTc]-d,l-HM-PAO in Rat Brain: An Autoradiographic Study
|
Hoffman, Timothy J.
|
|
1988
|
|
1_suppl |
p. S38-S43
|
artikel
|
| 119 |
Scientific Programme
|
|
|
2012
|
|
1_suppl |
p. S5-S7
|
artikel
|
| 120 |
Specification and Selection of Regions of Interest (ROIs) in a Computerized Brain Atlas
|
Bohm, C.
|
|
1991
|
|
1_suppl |
p. A64-A68
|
artikel
|
| 121 |
SPECT Measurements with 99mTc-HM-PAO in Focal Epilepsy
|
Ryding, Erik
|
|
1988
|
|
1_suppl |
p. S95-S100
|
artikel
|
| 122 |
SPECT with [99mTc]-d,l-Hexamethyl-Propylene Amine Oxime (HM-PAO) Compared with Regional Cerebral Blood Flow Measured by PET: Effects of Linearization
|
Yonekura, Yoshiharu
|
|
1988
|
|
1_suppl |
p. S82-S89
|
artikel
|
| 123 |
Statistical Analysis of Functional Neuroimaging Data: Exploratory versus Inferential Methods
|
Pawlik, G.
|
|
1991
|
|
1_suppl |
p. A136-A139
|
artikel
|
| 124 |
Statistical Issues in the Analysis of Neuroimages
|
Ford, I.
|
|
1991
|
|
1_suppl |
p. A89-A95
|
artikel
|
| 125 |
Technetium-99m-d,l-HM-PAO, the Development of a New Class of 99mTc-Labeled Tracers: An Overview
|
Lassen, Niels A.
|
|
1988
|
|
1_suppl |
p. S1-S3
|
artikel
|
| 126 |
The Effects of Collimation on PET Image Noise Due to Scatter, Random Counts, and Deadtime
|
Thompson, C. J.
|
|
1991
|
|
1_suppl |
p. A31-A37
|
artikel
|
| 127 |
The FDG/PET Methodology for Early Detection of Disease Onset: A Statistical Model
|
Clark, C. M.
|
|
1991
|
|
1_suppl |
p. A96-A102
|
artikel
|
| 128 |
The Niels Lassen Award Session and Oral Sessions
|
|
|
2017
|
|
1_suppl |
p. 1-97
|
artikel
|
| 129 |
The Niels Lassen Award Session and Oral Sessions
|
|
|
2019
|
|
1_suppl |
p. 1-123
|
artikel
|
| 130 |
The Precision of Positron Emission Tomography: Theory and Measurement
|
Alpert, Nathaniel M.
|
|
1991
|
|
1_suppl |
p. A26-A30
|
artikel
|
| 131 |
The 23rd International Symposium on Cerebral Blood Flow, Metabolism and Function
|
|
|
2007
|
|
1_suppl |
p. BO01-01-BP59-08H
|
artikel
|
| 132 |
The Retention Mechanism of Technetium-99m-HM-PAO: Intracellular Reaction with Glutathione
|
Neirinckx, Rudi D.
|
|
1988
|
|
1_suppl |
p. S4-S12
|
artikel
|
| 133 |
The Retention of [99mTc]-d,l-HM-PAO in the Human Brain after Intracarotid Bolus Injection: A Kinetic Analysis
|
Lassen, Niels A.
|
|
1988
|
|
1_suppl |
p. S13-S22
|
artikel
|
| 134 |
The Spectral Signature Method for the Analysis of PET Brain Images
|
Images, Brain
|
|
1991
|
|
1_suppl |
p. A103-A113
|
artikel
|
| 135 |
The 8th International Conference on Quantification of Brain Function with PET
|
|
|
2007
|
|
1_suppl |
p. PP01-04M-PP10-08U
|
artikel
|
| 136 |
The Use of [99mTc]-HM-PAO in the Diagnosis of Primary Degenerative Dementia
|
Testa, H. J.
|
|
1988
|
|
1_suppl |
p. S123-S126
|
artikel
|
| 137 |
The Use of Technetium-99m-HM-PAO in the Assessment of Patients with Dementia and other Neuropsychiatric Conditions
|
Smith, Francis W.
|
|
1988
|
|
1_suppl |
p. S116-S122
|
artikel
|
| 138 |
Tomographic Studies of rCBF with [99mTc]-HM-PAO SPECT in Patients with Brain Tumors: Comparison with C15O2 Continuous Inhalation Technique and PET
|
Langen, K.-J.
|
|
1988
|
|
1_suppl |
p. S90-S94
|
artikel
|
| 139 |
V. Anatomical Considerations
|
Strother, Stephen
|
|
1987
|
|
1_suppl |
p. S16-S18
|
artikel
|
| 140 |
XVIIIth International Symposium on Cerebral Blood Flow and Metabolism
|
|
|
1997
|
|
1_suppl |
p. S1-S806
|
artikel
|
| 141 |
Young Scientist Bursary Awardees
|
|
|
2012
|
|
1_suppl |
p. S3
|
artikel
|
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