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Acta Cytologica|November 1, 1979
Cytopathologic findings in pulmonary blastomaJ Spahr, R M Draffin, W W JohnstonCirculation|February 1, 1976
Vectorcardiographic criteria for the diagnosis of anterior myocardial infarctionJ W Starr, G S Wagner, R M Draffin, et al.Pageof 1