Olaison L, Schadewitz K; Swedish Society of Infectious Diseases Quality Assurance Study Group for Endocarditis. Enterococcal endo- carditis in Sweden, 1995-1999: can shorter therapy with aminogly- cosides be used? Clin Infect Dis. 2002;34:159 166. doi: 10.1086/ 338233. 190. Gavald J, Len O, Mir JM, Mu oz P, Montejo M, Alarc n A, de la Torre-Cisneros J, Pe a C, Mart nez-Lacasa X, Sarria C, Bou G, Aguado JM, Navas E, Romeu J, Marco F, Torres C, Tornos P, Planes A, Falc V, Almirante B, PahissaA. Brief communication: treatment of Enterococcus faecalis endocarditis with ampicillin plus ceftriaxone. Ann Intern Med. 2007;146:574 579. 191. Fern ndez-Hidalgo N, Almirante B, Gavald J, Gurgui M, Pe a C, de Alarc n A, Ruiz J, Vilacosta I, Montejo M, Vallejo N, L pez-Medrano F, Plata A, L pez J, Hidalgo-Tenorio C, G lvez J, S ez C, Lomas JM, Falcone M, de la Torre J, Mart nez-Lacasa X, Pahissa A. Ampicillin plus ceftriaxone is as effective as ampicillin plus gentamicin for treat- ing Enterococcus faecalis infective endocarditis. Clin Infect Dis. 2013;56:1261 1268. doi: 10.1093/cid/cit052. 192. Chirouze C, Athan E, Alla F, Chu VH, Ralph Corey G, Selton-Suty C, Erpelding ML, Miro JM, Olaison L, Hoen B; International Collaboration on Endocarditis Study Group. Enterococcal endocarditis in the begin- ning of the 21st century: analysis from the International Collaboration on Endocarditis-Prospective Cohort Study. Clin Microbiol Infect. 2013;19:1140 1147. doi: 10.1111/1469-0691.12166. 193. Dahl A, Rasmussen RV, Bundgaard H, Hassager C, Bruun LE, Lauridsen TK, Moser C, Sogaard P, Arpi M, Bruun NE. Enterococcus faecalis infective endocarditis: a pilot study of the relationship between dura- tion of gentamicin treatment and outcome. Circulation. 2013;127:1810 1817. doi: 10.1161/CIRCULATIONAHA.112.001170. 194. Geraci JE. 