00538nam a2200205Ia 4500001000900000007000300009008004100012040000900053041000800062082001300070245003500083260002100118300000700139650003300146650004200179650004000221710004700261942000700308999001700315CAEN4421ta210314s9999||||xx |||||||||||||| ||und||  aCAEN  aspa  aC614.4 U 0aEstudio Epidemiologico Clinico  aLimabUSMPc1997  a30  aEPIDEMIOLOGIA CLINICA915373  aESTUDIO EPIDEMIOLOGICO CLINICO915374  aINVESTIGACION EPIDEMIOLOGICA9153752 aUniversidad de San Martín de Porres9801  cBK  c26605d26605