研究员回顾了1970至2009年期间的9项研究，发现手术后体重和体质指数增加长达七年时间。
The researchers, who reviewed nine studies published between 1970 and 2009, found increased weight and body mass index (BMI) could be seen for up to seven years after the operation.
研究人员跟踪调查了5000名高中学生，该调查一直持续直到他们步入中年，总计22年。研究人员每年会记录一次调查对象的体重和体质指数(BMI)。
The researchers followed 5, 000 high school seniors until middle age, tracking their body weight and body mass index (BMI) annually for 22 years.
研究人员跟踪调查了5000名高中学生，该调查一直持续直到他们步入中年，总计22年。研究人员每年会记录一次调查对象的体重和体质指数(BMI)。
The researchers followed 5,000 high school seniors until middle age, tracking their body weight and body mass index (BMI) annually for 22 years.
应用推荐