Smith EP, Witherspoon DP, Bhargava S, Bermudez JM. Cultural values and behavior among African American and European American children. J Child Fam Stud. 2019 May 1;28:1236-49.
Espaulella J, Guyer H, Diaz-Escriu F, Mellado-Navas JA, Castells M, Pladevall-Vila M. Nutritional supplementation of elderly hip fracture patients. A randomized, double-blind, placebo-controlled trial. Age Ageing. 2000 Sep;29(5):425-31.