Exploring access to care among older people in the last phase of life using the behavioural model of health services use: a qualitative study from the perspective of the next of kin of older persons who had died in a nursing home

运用健康服务利用行为模型探讨生命末期老年人获得照护服务的途径：一项从养老院逝者家属视角出发的定性研究