International studies make case for high mammo volume.
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D001943:Breast Neoplasms / Q000000981:diagnostic imaging*; D002983:Clinical Competence; D005260:Female; D006801:Humans; D008327:Mammography / Q000706:statistics & numerical data*; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D011871:Radiology / Q000193:education / Q000592:standards; D014481:United States