00278nam a2200097Ia 4500008004100000040001100041100001900052245004200071260005700113300001000170251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aJohn J. Bergan 4aThe Surgical Clinics of North America  cFebruary, 1974bW. B. Saunders CompanyaPhiladelphia  bV. 54