title: Evidence-Based Medicine (EBM) in practice: applying number needed to treat and number needed to harm.
authors.affiliation: Gastroenterology and Hepatology Section, Fundación Santa Fe de Bogotá and Los Andes University, School of Medicine, Bogota, Colombia.
authors.forename: Fernando
authors.initials: F
authors.lastname: Sierra
mesh_terms: D000328:Adult; D001003:Anal Canal / Q000601:surgery; D001905:Botulinum Toxins / Q000008:administration & dosage / Q000009:adverse effects; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D003657:Decision Making; D019317:Evidence-Based Medicine; D005260:Female; D005401:Fissure in Ano / Q000628:therapy; D040261:Harm Reduction; D006801:Humans; D007267:Injections; D011183:Postoperative Complications; D040242:Risk Reduction Behavior; D018401:Sample Size; D016896:Treatment Outcome
chemical_list: D001905:Botulinum Toxins