“Association of social determinants of health with frailty, cognitive impairment, and self-rated health among older adults,” by Vanessa Tan, Cynthia Chen, and Reshma Aziz Merchant (PLoS ONE 17(11): e0277290. doi.org/10.1371/journal.pone.0277290, XML, HTML, and .pdf format, 18p.).
journals.plos.org/plosone/article?id=10.1371/journal.pone.0277290