Số lượng tinh trùng ngày càng suy giảm
(TNO) - Một nghiên cứu tại Pháp cung cấp thêm bằng chứng cho nhận định rằng, tinh trùng đàn ông ở nhiều nơi trên thế giới suy giảm so với trước, theo Reuters.
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