刘成的女儿早产，曾住进保温箱十天，出院后又因黄疸、肺部发育不良持续随访。儿童保健时，被检出患有先天性心脏病。没有户口，孩子无法办理医保，也无法购买商业保险，看病只能全额自费。
While the potential for physical hazards in Antarctica is high, Precious says social dynamics can prove more problematic. When relationships break down, the fallout can be hard to rectify, and hard to control, he says.
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