[1] Univ Groningen, Univ Med Ctr Groningen, Dept Hlth Sci, POB 30-001,FA10, NL-9700 RB Groningen, Netherlands
[2] Natl Univ Ireland Galway, Hlth Promot Ctr, Univ Rd, Galway H91 TK33, Ireland
[3] Univ Groningen, Urban & Reg Studies Inst, Populat Res Ctr, POB 800, NL-9700 AV Groningen, Netherlands
[4] Univ Groningen, Univ Med Ctr Groningen, Ctr Rehabil, POB 30002, NL-9750 RA Haren, Netherlands
[5] Reg Agcy Hlth ARS Marche Reg, Palazzo Rossini, Via Gentile da Fabriano 3, I-60125 Ancona, Italy
[6] Natl Inst Hlth & Sci Aging INRCA, Via S Margherita 5, I-60124 Ancona, Italy