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 Related words 
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 Related words 
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| 未熟児(premature baby) > | 
| 初産(first childbirth) > | 
| 授乳(breast-feeding) > | 
| 反抗期(rebellious phase) > | 
| 少子化(declining birth rates) > | 
| 帝王切開(cesarean) > | 
| 避妊(contraception) > |