00477nam a2200193Ia 4500001000700000003000400007008004500011010001100056020001800067041001400085100002700099245004200126250001000168260004100178300001100219650001800230650002400248082001100272011136LIB220712b2002        py ||||| |||| 00| 0 spa d  a011136  a970-729-004-8  aEspañol  aÁlvarez Alva, Rafael  aSalud pública y medicina preventiva  a3a ed  bEl Manual Moderno,aMéxico :c2002  a472 p.  aSALUD PUBLICA  aMEDICINA PREVENTIVA  a614.44