Case D C
Cancer Genet Cytogenet. 1984 Jun;12(2):163-5. doi: 10.1016/0165-4608(84)90128-6.
In 33 patients with essential thrombocythemia, a specific chromosomal abnormality ( 21q -) could not be confirmed. All patients in this series met rigid criteria for diagnosis of this myeloproliferative disorder.