[How long is it necessary to begin a multicentric clinical trial in Spain?].
Dal-Ré
Rafael
R
García-Corbeira
Pilar
P
Morejón
Elena
E
D000328:Adult; D002986:Clinical Trials as Topic / Q000941:ethics / Q000592:standards; D005060:Europe; D006801:Humans; D015337:Multicenter Studies as Topic / Q000941:ethics / Q000592:standards; D013030:Spain; D013997:Time Factors