Comparing Participants and Nonparticipants in a Smoking Cessation Trial: Selection Factors Associated With General Practitioner Recruitment Activity
Carlo Senore, Renaldo N Battista, Antonio Ponti, Nereo Segnan, Stanley H Shapiro, Stefano Rosso, Daniela AimarVolume:
52
Year:
1999
Language:
english
DOI:
10.1016/s0895-4356(98)00132-2
File:
PDF, 172 KB
english, 1999