“Why we should monitor disparities in old-age mortality with the modal age at death,” by Viorela Diaconu, Alyson van Raalte, and Pekka Martikainen (PLoS ONE 17(2): e0263626. doi.org/10.1371/journal.pone.0263626, XML, HTML, and .pdf format, 13p.).
journals.plos.org/plosone/article?id=10.1371/journal.pone.0263626