共 8 条
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- [2] CHIK LC, 1969, THESIS U ROCHESTER
- [3] CHIK LC, UNPUBLISHED DATA
- [4] Hon EH, 1968, ATLAS FETAL HEART RA
- [5] MEYERS GG, 1972, AM J OBSTET GYNECOL, V112, P39
- [6] OGURECK JE, 1972, OBSTET GYNECOL, V40, P356
- [7] Stakgold I., 1967, BOUNDARY VALUE PROBL