共 15 条
- [1] [Anonymous], 11 14 WEEK SCAN DIAG
- [4] Falik-Zaccai Tzipora, 2006, Harefuah, V145, P916
- [6] Additional performance of nasal bone in first trimester screening - Nasal bone in first trimester screening [J]. ULTRASCHALL IN DER MEDIZIN, 2006, 27 (04): : 336 - 339
- [7] KOZLOWSKI P, 2007, ULTRASCHALL MED
- [9] Merz E, 2005, ULTRASCHALL MED, V26, P365
- [10] DEGUM III guideline for level II ultrasound examinations at 11-14 weeks of gestation [J]. ULTRASCHALL IN DER MEDIZIN, 2004, 25 (03): : 218 - 220