00346nam a2200121 a 450000500170000002000150001708200190003210000060005124500920005726000230014930000150017249000370018720251203091719.0  a8185386382  a615.1,bD, ess  d_  aEssential drugs for primary health care: a manual for health workers in South-East Asia  aDelhibAITBSc1991  a106p, 23cm  aSEARO Regional Health Papersd16