00677nas a2200277   4500000000100000008004100001260001300042653001100055653000900066653003200075653001900107653001100126653001200137653002100149653001800170653001700188653003000205100001300235700001300248700001700261700001300278245007700291300001000368490000700378022001400385       1974                            d  c1974 Mar10aAfrica10aAsia10aEvaluation Studies as Topic10aHealth Surveys10aHumans10aleprosy10aSampling Studies10aSouth America10aTime Factors10aWorld Health Organization1 aWalter J1 aSeal K S1 aSansarricq H1 aEngler V00aRandom sample survey in leprosy control programmes--are they a nuisance?  a89-950 v25  a0303-4208