Strength training stops bone loss and builds muscle in postmenopausal breast cancer survivors: a randomized, controlled trial

A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation

Mary E. Charlson, Peter Pompei, Kathy L. Aleš et al. · Journal of Chronic Diseases · 1987 · 49.9K citations

Public Health, Biostatistics, Clinical Classification Systems +15

Hierarchical Linear Models: Applications and Data Analysis Methods.

Nicholas T. Longford, Anthony S. Bryk, Stephen W. Raudenbush · Contemporary Sociology A Journal of Reviews · 1993 · 18.9K citations

Business, Biostatistics, Data Science +14

Hierarchical Linear Models: Applications and Data Analysis Methods

Marie Davidian · Journal of the American Statistical Association · 2003 · 13.9K citations

Business, Biostatistics, Data Science +14

Physical Activity and Public Health

William L. Haskell, I‐Min Lee, Russell R. Pate et al. · Circulation · 2007 · 6.5K citations · Full text

Public Health, Health Promotion, Sports Medicine +12

Exercise and Physical Activity for Older Adults

Wojtek Chodzko-Zajko, David N. Proctor, Maria A. Fiatarone Singh et al. · Medicine & Science in Sports & Exercise · 2009 · 5.1K citations

Education, Physiology, Aging +16