00432cam a2200169 a 4500001000700000003000400007005000900011008005900020020001800079245006400097250000700161260003000168300001200198650001200210700002700222040001300249136374OSt201809210000001984                             A   0000000000   00  a950-02-0025-2  aTécnica quirúrgicacFederico E. Christmann ... [et al.]  a12  aBuenos Aires :bEl Ateneo  a1281 p.  aCirugia  aChristmann, Federico E  aDLCcDLC