{"footnote":"\u003Cp\u003E  The situation is a little more complicated than this. The information in these paragraphs, which supplements Rose, is taken from numerous sources. The most useful one (for laymen) that I have  recently read is by the medical anthropologist Margaret Lock, \u0026lsquo;Alzheimer\u0026rsquo;s Disease: A Tangled Concept\u0026rsquo;, in \u003Cem class=\u0022emphasisClass\u0022\u003EComplexities: Beyond Nature and Nurture\u003C\/em\u003E, edited by Susan  McKinnon and Sydel Silverman (Chicago, 296 pp., \u0026pound;35 and \u0026pound;14, June, 0 226 50023 3). Lock has a lot of critical data about the genetic correlations and other matters.\u003C\/p\u003E\n","audio":[],"video":[]}