NICK J. MANSOUR, M.D.
To the editor: I agree somewhat with the author's conclusion in their paper "Philadelphia-Chromosome-Positive and -Negative Chronic Myelocytic Leukemia" (Ann Intern Med 72:175-182, 1970). If one looks at their graph (Figure 1) one gets a distinct feeling there are two populations represented by the line for the Ph-negative group of patients, one by rapid fall, the other by a less steep declining line that parallels that of the Ph-positive group. If one further attempts to arrive at a numerical figure, he finds that the rapidly falling line represents about 11 patients (60% of 18). Have the authors simply selected out
MANSOUR NJ. Philadelphia Chromosome and Leukemia. Ann Intern Med. 1970;72:960–961. doi: 10.7326/0003-4819-72-6-960_2
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Published: Ann Intern Med. 1970;72(6):960-961.
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