李鼎九，男，北京市人。生于１９３０年，１９４８年就读于北京燕京大学，１９５６年毕业于北京协和医学院，在协和医院任住院医师，师从于谷铣之教授学习放射治疗；１９５９年起在河南洛阳医学院任住院医师２２年；１９７９年后在河南省肿瘤医院工作，任主任医师／研究员... Li Dingjiu, male, Beijing city people. Born in 1930, he studied at Yanjing University in Beijing in 1948, and graduated from Peking Union Medical College in 1956. He resided as a resident physician at Peking Union Medical College Hospital where he studied radiation therapy from a professor at Valley Milling University. From 1959, he was educated at Luoyang Medical College in Henan Province Resident physician for 22 years; after 1979 in Henan Province Tumor Hospital, chief physician / researcher ...