Cancer of the breast in Philadelphia hospitals 1951-1964.
D000367:Age Factors; D001943:Breast Neoplasms / Q000453:epidemiology*; D003710:Demography; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D010414:Pennsylvania; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology; D011379:Prognosis; D012189:Retrospective Studies; D012494:Sampling Studies; D012737:Sex Factors