Amoxicillin or myringotomy or both for acute otitis media: results of a randomized clinical trial. (Evidenzklasse: I b). - Kaleida,P.H.; Casselbrant,M.L.; Rockette,H.E.; Paradise,J.L.; Bluestone,C.D.; Blatter,M.M.; Reisinger,K.S.; Wald,E.R.; Supance,J.S. (Pediatrics, 1991)