共 16 条
[11]
Recruitment for controlled clinical trials: Literature summary and annotated bibliography
[J].
CONTROLLED CLINICAL TRIALS,
1997, 18 (04)
:328-352
[13]
Newington Lisa, 2014, J Clin Med Res, V6, P162, DOI 10.14740/jocmr1619w
[14]
Pearce S., 2010, ESSENCE CARE TEENAGE