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| Differential Diagnostic Value of Trans-scrotal and Rectal Ultrasonography Combined with Serum AMH Detection in Obstructive and Nonobstructive Azoospermia |
| WANG Fang, CAO Chengzhi, YUAN Jiantao |
| First-author's address: Department of Ultrasound, Xianning First People's Hospital, Xianning 437000, China |
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