Comparative study of electronic vs. paper VAS ratings: a randomized, crossover trial using healthy volunteers
Titel:
Comparative study of electronic vs. paper VAS ratings: a randomized, crossover trial using healthy volunteers
Auteur:
Jamison, Robert N. Gracely, Richard H. Raymond, Stephen A. Levine, Jonathan G. Marino, Barbara Herrmann, Timothy J. Daly, Margaret Fram, David Katz, Nathaniel P.