Abstract

References
1.
Li B.
, &
Li J-Y
(1980 ) Chinese Journal of Oncology 2 , 1
2.
Wang C-H
(1978 ) Chinese Journal of Surgery 16 , 134
3.
Xu G-W
(1978 ) Chinese Journal of Internal Medicine 17 , 477
4.
Xu G-W
(1979 a) Chinese Journal of Oncology 1 , 223
5.
Xu G-W
(1979 b) National Medical Journal of China 59 , 315
