Deg yiwet n tezrawt i d-yeffɣen ussan-a deg JAMA Network Open, inelmaden n Yiwunak Yeddukklen n Marikan (US) ddan ɣef tdukli yellan gar tneqqis tadelsant d wayen i d-yeffɣen i tezmert n yimezdaɣ n Marikan. Ufan belli tneqqis tadelsant tettili-d ɣef yiɣil n tezmert d uḥezzeb n tmettant d tmettant deg yimezdaɣ. Taẓra-ya tettili-d ɣef yiɣil n yir lbenna, am uḥezzeb n tezmert i d-yettwaṭṭafen, ur nḥezzeb ara i useggem, d uḥezzeb n uḥezzeb n wučči d uxxam.