“…Among caregivers to older adults the most studied population has been caregivers to cognitively impaired care recipients, although other conditions have attracted increasing interest, such as cancer [47][48][49], stroke [2,45,[50][51][52][53][54], home-based dialysis [55], heart failure [56], multiple sclerosis [57][58][59], dementia [60], and amyotrophic lateral sclerosis (ALS) [61]. Caregiving research has also emerged from new geographical areas, including Japan [36,62,63], Taiwan [64], China [48,55], and so-called developing countries [65][66][67].…”