00634nas a2200277   4500000000100000008004100001260001600042653001500058653001300073653001600086653001000102653002100112653001100133653001300144653001200157653001200169653001500181653001500196653001600211100001600227700001500243245006700258300001100325490000600336022001400342       1968                            d  c1968 Dec 1410aAdolescent10aAntigens10aBCG Vaccine10aChild10aChild, Preschool10aHumans10aLepromin10aleprosy10aNigeria10aSkin Tests10aTuberculin10aVaccination1 aJamison D G1 aVollum R L00aTuberculin conversion in leprous families in Northern Nigeria.  a1271-20 v2  a0140-6736