[1] Univ Coimbra, Fac Med, Coimbra, Portugal
[2] Univ Porto, CINTESISRISE, MEDCIDS, Fac Med, Porto, Portugal
[3] USF Vitasaurium, Coimbra, Portugal
[4] Univ Beira Interior, Fac Hlth Sci, Covilha, Portugal
[5] Cicely Saunders Inst Palliat Care Policy & Rehabil, Kings Coll London, London, England