Sravani Ambati

preventive measures signs and symptoms mode of absorption classification organic and inorganic lead occupational disease sources of lead exposure patho-physiology prevention diagnosis management plumbism normal values chronic lead poisoning acute lead poisoning lead poisoning byssinosis bagossis farmer's lung anthracosis asbestosis silicosis occupational hazard dust occupational diseases pnuemoconiosis sravani ambati vaccination evolution of immunization vaccination program uip universal immunization program immunization