Comparing participants and nonparticipants recruited for an effectivenes study of nicotine replacement therapy
Titel:
Comparing participants and nonparticipants recruited for an effectivenes study of nicotine replacement therapy
Auteur:
Velicer, Wayne F. Keller, Stefan Friedman, Robert H. Fava, Joseph L. Gulliver, Suzy B. Ward, Rose Marie Ramelson, Harley Prochaska, James O. Cottrill, Sara D.