 2011, Vol. 22 Issue (11): 834-835 DOI: |
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| Ultrasonic diagnosis fetal heart outside of chest: report of two cases | |||
| ZHAN Yan1, SUN Wei-hua2, SONG Yan-peng1 | |||
| 1. Jiaozhou Central Hospital of Qingdao, Qingdao Shandong 266300, China;2. Jiaozhou Maternal and Child Health Hospital, Qingdao Shandong 266300, China | |||
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