Scott WilliamsNuclear MedicinePulmonary ReferencePULMREFScott WilliamsMay 30, 2007 Overton DT, Bocka JJ: The alveolar-arterial oxygen gradient in patients with documented pulmonary embolism. Archives of Internal Medicine 148:1617-9, 1988.Latest in Pulmonary ReferencePULMREFMay 30, 2007PULMREFMay 30, 2007PULMREFMay 30, 2007PULMREFMay 30, 2007