FRANK A. WALKER, M.D.
To the editor: In a recent paper dealing with familial leukemia, "Familial Chronic Lymphocytic Leukemia," by Blattner and associates (Ann Intern Med 85:554-557, 1976), the pedigree and the explanation refer to a man and four or five offspring in a family in which "all family members have worked in the dry cleaning business since the 1940s." This suggests extensive exposure to benzene and other potential carcinogenic hydrocarbons over a period of 20 to 30 years. Previous studies reported extensively in the literature, including those by Dr. Richard Stewart of the Department of Environmental Medicine at the Allan Bradley Laboratory, Medical
WALKER FA. Familial Leukemia and Dry Cleaning. Ann Intern Med. ;85:404–405. doi: 10.7326/0003-4819-85-3-404_2
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Published: Ann Intern Med. 1976;85(3):404-405.
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