[On the evaluation of complex interventions in a real world].
Isabel
I
Rosich
Maria
M
Soler
D002986:Clinical Trials as Topic; D052246:Cyclooxygenase 2 Inhibitors / Q000009:adverse effects*; D011307:Drug Prescriptions / Q000706:statistics & numerical data*; D006801:Humans
D052246:Cyclooxygenase 2 Inhibitors