00503nas a2200193   4500000000100000008004100001260001300042653002600055653002000081653001100101653001200112653001500124100001400139245011000153300000900263490000700272050001600279022001400295       1962                            d  c1962 Feb10aCommunicable Diseases10aData Collection10aHumans10aNigeria10aPrevalence1 aCOLLARD P00aA sample survey to estimate the prevalence of certain communicable diseases in Katsina province, Nigeria.  a3-310 v11  aCOLLARD1962  a0043-3004