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Observation group (Part 1):None

6 trials

Sponsors

Chengdu Women's and Children's Center Hospital, The Fourth Hospital of Hebei Medical University, Ya'an People's Hospital, People's Hospital of Xinjiang Uygur Autonomous Region, People's Hospital of Pidu District, Chengdu City

Conditions

Acute high-alitude illnessesFear of childbirthFrailtyMigration Stresschronic diseasecolorectal cancer