Lippincott, Williams & Wilkins, Epidemiology, 4(14), p. 506, 2003
DOI: 10.1097/01.ede.0000071470.28125.bd
Lippincott, Williams & Wilkins, Epidemiology, 6(13), p. 718-720, 2002
DOI: 10.1097/00001648-200211000-00018
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