00522cam a2200157 a 4500001000700000003000400007005000900011008005900020100001800079245014100097260004200238300001600280650003200296700002300328040001300351135511OSt201809210000001969                             AD  0000000000   00  aBrecher, Ruth  aThe rays : a history of radiology in the United States and Canada /cThe rays : a history of radiology in the United States and Canada /  aBaltimore :bThe Williams and Wilkins  axix, 484 p.  aMEDICINAaRADIOLOGIA MEDICA  aI. Brecher, Edward  aDLCcDLC