00441nam a2200145 i 450000100060000000300090000600500170001500700030003200800410003510000260007624500940010226000540019630000210025085200240027187464ES-MaACL20230906175657.0t|041222s1929    xxu          ||||1| eng d1 aKretschmer, Herman L.10aCongenital valves of the posterior urethra / cby Herman L. Kretschmer and L. E. Pierson.  aChicago : bAmerican Medical Association, c1929.  a14 p. ; c26 cm.  aES-MaACLj1743-F-13