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Investigations of the Monoclonal Gammopathies

On reviewing the 43 patients with myelomatosis, it was found that it was not a predominantly male disease (ratio male:female was 19:24). This is in line with the New York, London and Malmo series reviewed by Martin (1961) but in contrast to data prior to 1930. The peak age incidence in this series (see Fig. 1) was in the sixth decade. This differs from the distribution shown in the London and New York series in which the frequency was most common in the fifth decade, and also by the Malmo workers who found the highest incidence in the seventh decade. However, our figures agree with the Edinburgh