Research Narratives 5 - Research 3
- YU ZHOU
- 2022年2月4日
- 讀畢需時 1 分鐘
已更新:2022年4月27日






- In 2019, 1.1 billion of the world's 1.9 billion women of reproductive age (15-49 years) will need family planning, of whom 842 million will be using contraceptive methods and 270 million will have an unmet need for contraception[1,2] .
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