[1] Erasmus MC, Dept Publ Hlth, Dr Molewaterpl 40, NL-3015 GD Rotterdam, Netherlands
[2] Vrije Univ Amsterdam, Dept Publ & Occupat Hlth, Amsterdam Publ Hlth Res Inst, Expertise Ctr Palliat Care,Amsterdam UMC, Amsterdam, Netherlands
[3] Netherlands Inst Hlth Serv Res NIVEL, Utrecht, Netherlands
[4] CVD Havenzicht, Rotterdam, Netherlands
[5] Netherlands St Doctors Grp NSG, Amsterdam, Netherlands