00650nas a2200277   4500000000100000008004100001260001300042653002300055653001000078653002900088653001400117653002400131653001100155653001100166653001200177653000900189653002500198653002200223653002400245653001600269100001100285245004400296300001100340490000700351022001400358       1983                            d  c1983 Dec10aBacterial Vaccines10aChild10aClinical Trials as Topic10aComputers10aDouble-Blind Method10aFemale10aHumans10aleprosy10aMale10aMycobacterium leprae10aRandom Allocation10aStatistics as Topic10aVaccination1 aGuld J00aOperational problems in vaccine trials.  a559-620 v51  a0148-916X