Recruitment to multicentre trials.
Gates
Simon
S
National Perinatal Epidemiology Unit, Institute of Health Sciences, Oxford, UK.
Brocklehurst
Peter
P
Campbell
Marion
M
Elbourne
Diana
D
D006801:Humans; D015337:Multicenter Studies as Topic / Q000379:methods*; D010358:Patient Participation; D018579:Patient Selection; D010819:Physician's Role; D016032:Randomized Controlled Trials as Topic / Q000379:methods*