00557nas a2200205   4500000000100000008004100001260001600042653001200058653003300070653001100103653001200114653002600126653003400152653003000186100001900216245008600235300000900321490000700330022001400337       1972                            d  c1972 Jan 1310aCholera10aCommunicable Disease Control10aHumans10aleprosy10aPoxviridae Infections10aSexually Transmitted Diseases10aWorld Health Organization1 aKupferschmidt 00a[Efforts of the World Health Organization in the field of communicable diseases].  a92-60 v27  a0012-0219