Samsell B, Softic D, Qin X, McLean J, Sohoni P, Gonzales K, Moore MA. Preservation of allograft bone using a glycerol solution: a compilation of original preclinical research. Biomater Res. 2019 Feb;23(5). doi: 10.1186/s40824-019-0154-1
Raghunathan K, Layton JB, Ohnuma T, Shaw AD. Observational research using propensity scores. Adv Chronic Kidney Dis. 2016 Nov;23(6):367-72. doi: 10.1053/j.ackd.2016.11.010
Hartman M, Bolton E, Fehnel SE. Accounting for age differences on the Wisconsin Card Sorting Test: decreased working memory, not inflexibility. Psychol Aging. 2001 Sep 1;16(3):385-99.