Circulating malignant cells in Burkitt's lymphoma: possible role in tumour dissemination.


Hence, distributions of height and (maturational) age for gender differ considerably and adjustments by linear regression cannot alter this: comparisons remain difficult. Secular trends further complicate such analyses.2 3 Because the height-lung function relationship during puberty is complex and varies with age and gender,4 5 it is desirable to study the… (More)


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