00360nas a2200169   4500000000100000008004100001260001600042653000900058653001400067653001100081653001200092100001500104245004200119300000900161490000600170022001400176       1976                            d  c1976 May 0810aAged10aBlindness10aHumans10aleprosy1 aChoyce D P00aLetter: Foresight prevents blindness.  a11470 v1  a0007-1447