Mayo Clinic researchers reviewed records of 311 patients with primary myelofibrosis, a scarring of the bone marrow, from 1976 to 2006.是什么意思_Mayo Clinic researchers reviewed records of 311 patients with primary myelofibrosis, a scarring of the bone marrow, from 1976 to 2006.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句