Jack Alperin

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Examination of two siblings who had histories of progressive decline in speech, intelligence, and coordination disclosed vertical supranuclear ophthalmoplegia, hepatosplenomegaly, and signs of diffuse CNS dysfunction. Niemann-Pick "foam cells" were found in the bone marrow of both patients. The features of these cases correlate in appearance and clinical(More)
Myeloproliferative neoplasms (MPNs) are traditionally separated into BCR-ABL-positive chronic myeloid leukemia (CML), and BCR-ABL-negative MPNs including primary myelofibrosis (PMF), essential thrombocythemia (ET), and so forth. One of the diagnostic requirements for PMF and ET is the absence of the Philadelphia chromosome, while its presence is almost(More)
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