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根据世界卫生组织的定义，一对夫妇12个月以上未采取任何避孕措施，性生活正常却未孕，就属于不孕不育。女性称为“不孕症”，男性称为“不育症”。
More top storiesHow forensics uncovered the murder behind bones found at a beauty spot
His business, which he co-founded with colleague Bert de Wit, advises companies on their brand identity and packaging.