Treweek, S. (2011). Recruitment to trials - why is it hard and how might we make it less so? BioMed Central.
Citação norma ChicagoTreweek, Shaun. Recruitment to Trials - Why Is It Hard and How Might We Make It Less So? BioMed Central, 2011.
ציטוט MLATreweek, Shaun. Recruitment to Trials - Why Is It Hard and How Might We Make It Less So? BioMed Central, 2011.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.