1. Blood lead levels for persons 6 months-74 years of age: United States, 1976-80;Annest;NCHS Advance Data,1982
2. Blood-lead levels in US population;Centers for Disease Control;MMWR,1982
3. Exposure to lead;Bryce-Smith;Lancet,1981
4. Cyclic changes in platelet dynamics and pathogenesis and prophylaxis of migraine;Deshmukh;Headache,1977