Michelle L. Bell, Devra L. Davis, Tony Fletcher: A retrospective assessment of mortality from the London smog episode of 1952: the role of influenza and pollution. Environmental Health Perspectives, 2004-01, 112. vsk, nro 1, s. 6–8. PubMed:14698923. doi:10.1289/ehp.6539. ISSN 0091-6765. Artikkelin verkkoversio.
Michelle L. Bell, Devra L. Davis, Tony Fletcher: A retrospective assessment of mortality from the London smog episode of 1952: the role of influenza and pollution. Environmental Health Perspectives, 2004-01, 112. vsk, nro 1, s. 6–8. PubMed:14698923. doi:10.1289/ehp.6539. ISSN 0091-6765. Artikkelin verkkoversio.
Michelle L. Bell, Devra L. Davis, Tony Fletcher: A retrospective assessment of mortality from the London smog episode of 1952: the role of influenza and pollution. Environmental Health Perspectives, 2004-01, 112. vsk, nro 1, s. 6–8. PubMed:14698923. doi:10.1289/ehp.6539. ISSN 0091-6765. Artikkelin verkkoversio.