Wion RK, Hill NL, Mogle J, Bhargava S, Berish D, Kolanowski A. Scoring of leisure activities for older adults according to cognitive, physical, and social components. Res Gerontol Nurs. 2020 Jan 1;13(1):13-20. doi: 10.3928/19404921-20191022-01
Cueto HT, Riis AH, Hatch EE, Wise LA, Rothman KJ, Sørensen HT, Mikkelsen EM. Folic acid supplementation and fecundability: a Danish prospective cohort study. Eur J Clin Nutr. 2016 Jan;70(1):66-71. doi: 10.1038/ejcn.2015.94