[The use observation--an observation of use. Does it have to be published?].
Fortunat
S
S
D016022:Case-Control Studies; D015331:Cohort Studies; D004358:Drug Therapy / Q000592:standards*; D019317:Evidence-Based Medicine; D006801:Humans; D011358:Product Surveillance, Postmarketing; D011643:Publishing; D016032:Randomized Controlled Trials as Topic; D012106:Research / Q000592:standards*