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Lead poisoning: a crisis of conscience.
Challop RS. Challop RS. Med Ann Dist Columbia. 1972 Sep;41(9):561-3. Med Ann Dist Columbia. 1972. PMID: 4506260 No abstract available.
Simple rapid test for lead poisoning.
McCabe EB, Challop RS. McCabe EB, et al. Among authors: challop rs. J Pediatr. 1972 May;80(5):893-4. doi: 10.1016/s0022-3476(72)80157-4. J Pediatr. 1972. PMID: 5018404 No abstract available.
Role for cadmium in lead poisoning.
Challop RS. Challop RS. N Engl J Med. 1971 Oct 21;285(17):970-1. doi: 10.1056/nejm197110212851713. N Engl J Med. 1971. PMID: 5096233 No abstract available.
Lead poisoning.
Challop RS. Challop RS. N Engl J Med. 1970 Nov 5;283(19):1055. doi: 10.1056/nejm197011052831916. N Engl J Med. 1970. PMID: 5470274 No abstract available.