TY - RPRT TI - Randomized controlled trials: do they have external validity for patients with multiple comorbidities? AU - Martin Fortin AU - Jonathan Dionne AU - Geneviève Pinho AU - Julie Gignac AU - José Almirall AU - Lise Lapointe DO - 10.1370/afm.516 UR - https://pubmed.ncbi.nlm.nih.gov/16569712/ ID - 16569712 ER -