消費者保護法 舉證責任 瑕疵醫療行為與損害間的因果關係 說明義務 發展瑕疵 消滅時效 錯誤的出生 錯誤的生命 事實推定過失與因果關係原則 合理期待之安全性 產品流通進入市場 告知後同意 Consumer protection act Burden of proof Causal relationship between the defective medical service and the damage occurred Obligation to provide all necessary information and documentation to the damaged party Development risks Time-limits Wrogful birth Wrongful life Res ispa loquitur The safety which a person is entitled to expect Putting product into circulation Informed consent