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| Reg No. in ChiCTR | Public title | Ailment | Type | Phase | Registration time | Viewed | Operation |
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tonsillectomy for children with obstructive sleep apnea Zhengzhou Central Hospital Affiliated to Zhengzhou University |
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Therapy Study |
Premarket |
2022-07-01 | 980 | Patient list |
| ChiCTR2100044832 |
Zhengzhou Central Hospital Affiliated to Zhengzhou University |
Pharmacokinetic of ropivacaine in the elderly |
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2021-03-28 | 1206 | Patient list |