Ashfield, T., Syddal, H., Martin, H., Dennison, E., Cooper, C., & Sayer, A. (2008). Association between grip strength and cardiovascular drug use in older people: Findings from the Hertfordshire cohort study.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ashfield, T., H. Syddal, H. Martin, E. Dennison, C. Cooper, و A. Sayer. Association Between Grip Strength and Cardiovascular Drug Use in Older People: Findings from the Hertfordshire Cohort Study. 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Ashfield, T., et al. Association Between Grip Strength and Cardiovascular Drug Use in Older People: Findings from the Hertfordshire Cohort Study. 2008.
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