The classic model is, you get a bunch of studies where you know that they've been conducted and completed, and then you go and see if they've been published anywhere in the academic literature. So this took all of the trials that had ever been conducted on antidepressants that were approved over a 15-year period by the FDA.
În modelul clasic se ia un maldăr de studii cunoscute a fi fost făcute şi terminate, şi se verifică dacă au fost publicate pe undeva în literatura academică. Deci aceasta a luat toate studiile făcute pe antidepresive care au fost aprobate pe o perioadă de 15 ani de FDA.