根据国家关节肌肉骨骼及皮肤病研究所的调查，年龄在11到30岁的人群中，80%的人都曾长过粉刺。
An estimated 80 percent of all people between the ages of 11 and 30 have outbreaks, according to the National Institute of Arthritis and Musculoskeletal and Skin Diseases.
该研究获得美国关节炎、肌骨骼病与皮肤病研究所资金支持及国立老年医学研究所的支持。
The research was supported by grants from the National Institute of Arthritis and Musculoskeletal and Skin Diseases and by the National Institute on Aging.
该研究获得美国关节炎、肌骨骼病与皮肤病研究所资金支持及国立老年医学研究所的支持。
The research was supported by grants from the National Institute of Arthritis and Musculoskeletal and Skin Diseases and by the National Institute on Aging.
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