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Authors
Tana, Wuren https://orcid.org/0000-0002-9827-7408
Noryung, Tenzing
Burton, Graham J.
van Patot, Martha Tissot
Ri-Li, Ge
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81641081)
National Basic Research Program of China (2012CB518200)
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Article History
Received: 4 June 2020
Accepted: 20 December 2020
First Online: 19 January 2021
Compliance with Ethical Standards
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: None Declared.
: The research ethics committee from Qinghai University Medical College (Qinghai, China), and the Colorado Multiple Institutional Review Board (Aurora, Colorado) approved this study. Human term (38 to 40 weeks) placentas were obtained from women of Tibetan ancestry undergoing normal pregnancies at the Yushu Prefecture Hospital (3780 m) in Qinghai Province, with informed written consent in Tibetan language and explained by local Tibetan doctors.Non-native high-altitude placental tissues were donated by the Centre for Trophoblast Research at the University of Cambridge, UK; the samples used in this study were obtained from 15 women of European descent, recruited in Leadville, CO, with informed written consent form explained by researcher and local mid wives.
