00296nam a2200121Ia 4500020001500000082001900015100003000034245005500064260003000119300001500149500000500164700000500169  a8185040370  a304.3bW927.WH  aWorld Health Organization  aThe World health report 1999 bmaking a difference  aNew DelhibBookwellc1999  axxi, 122p.  a  a