About the Authors
- Zhen Wang
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Contributed equally to this work with: Zhen Wang, Li-jun Yuan
Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Li-jun Yuan
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Contributed equally to this work with: Zhen Wang, Li-jun Yuan
Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Tie-sheng Cao
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* E-mail: caots4335@yahoo.cn
Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Yong Yang
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Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Yun-you Duan
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Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
- Chang-yang Xing
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Affiliation Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Researched literature: ZW LY. Calibrated the manometer of the pressure measurement device used in this study: ZW TC. Edited and revised manuscript critically for important intellectual content: ZW LY YY YD CX. Conceived and designed the experiments: ZW LY TC. Performed the experiments: ZW LY YY YD CX. Analyzed the data: ZW LY YD TC. Contributed reagents/materials/analysis tools: ZW LY YY YD CX. Wrote the paper: ZW LY TC.