[1] Leiden Univ, Med Ctr, Dept Internal Med, Sect Geriatr, Leiden, Netherlands
[2] Leiden Univ, Med Ctr, Dept Emergency Med, Leiden, Netherlands
[3] Leiden Univ, Med Ctr, Dept Publ Hlth & Primary Care, Leiden, Netherlands
[4] Inst Evidence Based Med Old Age IEMO, Leiden, Netherlands