Explore overuse of words and wordiness.
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”。
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MIT — Rikkert ten Klooster
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A two-pronged strategy directs drug-delivering nanoparticles to the pancreas — and shows promise in animal models of serious pancreatic diseases.