1 1 30 a problem-based approach Benacerraf, Beryl R. Primary Author Goldstein, Steven R. Primary Author Groszmann, Yvette S. Primary Author mixed material 9781437737943 [E. U. A.] Saunders c2014 Gynecologic ultrasound : a problem-based approach cover_gynecologic-ultrasound-a-problem-based-approach-20260320103526.jpg