00518nam a22001097a 4500020002100000082001300021100003000034245007200064260002900136300003500165650020800200 a8125906339 (pbk) a613bGUP aGupta,PiyushaGhai, O. P. aEssential preventive medicine ba clinical and applied orientation  aNew Delhi bVIKAS c1999 axxvi, 969 p.b: ill.c; 24 cm. aMedicine aPreventive medicine vPreventive medicine vPrimary health care vEnvironment and health vNutrition and health vReproductive health vChild health vDisability and physical handicaps vIIMC