RT Journal Article SR Electronic T1 Chemical pneumonia in workers extracting beryllium oxide JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 431 OP 439 VO 51 IS 2 A1 VanOrdstrand, H. S. A1 Hughes, Robert A1 Carmody, Morris G. YR 1984 UL http://www.ccjm.org/content/51/2/431.abstract AB