共 13 条
- [1] BALL P A, 1962, Br Med J, V2, P948
- [3] EDWARDS JH, 1956, LANCET, V270, P579
- [4] FREDA VJ, 1958, J OBSTETRICS GYNECOL, V76, P407
- [5] MCCONNELL RB, 1966, GENETICS GASTROINTES
- [6] MOHR J, 1954, OPERA DOMO BIOLOGIAE, V33
- [8] PRZESTWOR E, 1964, POZNANSKI TOWARZYSTW, V29, P197
- [9] PUTKONEN T, 1930, ACTA SOCIETATIS MEDI, V14, P82