This open-label, multicenter, single-arm study investigated the efficacy of administration of 20,000 IU of epoetin alfa once every 2 wk as initiation therapy in these patients.是什么意思_This open-label, multicenter, single-arm study investigated the efficacy of administration of 20,000 IU of epoetin alfa once every 2 wk as initiation therapy in these patients.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句