共 22 条
- [1] BENIRSCHKE K, 1961, NEW YORK STATE J MED, V60, P1499
- [2] BENIRSCHKE K, 1959, OBSTET GYNECOL, V14, P72
- [3] BENIRSCHKE K, 1964, BOSTON MED QUART, V15, P11
- [4] BLEISCH V, IN PRESS
- [6] FALKNER F, 1962, BIOL NEONATORUM, V4, P52
- [7] GEDDA L, 1961, TWINS HISTORY SCIENC
- [8] HEINRICHS E, 1964, JAMA-J AM MED ASSOC, V187, P862
- [9] Hertig AT, 1935, CONTRIB EMBRYOL, V25, P39
- [10] Hyrtl J., 1870, BLUTGEFASSE MENSCHLI