Optimum models of hospice at home services for end-of-life care in England: a realist-informed mixed-methods evaluation oleh Claire Butler, Patricia Wilson, Vanessa Abrahamson, Rasa Mikelyte, Heather Gage, Peter Williams, Charlotte Brigden, Brooke Swash, Melanie Rees-Roberts, Graham Silsbury, Mary Goodwin, Kay Greene, Bee Wee, Stephen Barclay