6. Hartz, S. C. (1992) The WSS study population. In: Nutrition in the Elderly: The Boston Nutritional Status Survey (Hartz, S. C., Russell, R. M. & Rosenberg, J. H., eds.), London, Smith-Gordon, pp. 17–25.
7. European Food Safety Authority (EFSA) in a scientific opinion in 2010: “Scientific Opinion on the substantiation of health claims related to protein and increase in satiety leading to a reduction in energy intake (ID 414, 616, 730), contribution to the maintenance or achievement of a normal body weight (ID 414, 616, 730), maintenance of normal bone (ID 416) and growth or maintenance of muscle mass (ID 415, 417, 593, 594, 595, 715) pursuant to Article 13(1) of Regulation (EC) No 1924/2006” https://www.efsa.europa.eu/en/efsajournal/pub/1811
9. Houston, D.K. et al. Dietary protein intake is associated with lean mass change in older, community dwelling adults: the Health, Aging, and Body Composition (Health ABC) Study. Am J Clin Nutr 87, 150-155 (2008).
Rizzoli, R. et al. The role of dietary protein and vitamin D in maintaining musculoskeletal health in postmenopausal women: A consensus statement from the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis (ESCEO).
11. Yanai H. Nutrition for Sarcopenia. J Clin Med Res. 2015 Dec; 7(12): 926–931.