[1] Univ Kebangsaan Malaysia, Dept Psychiat, Fac Med, Med Ctr, Jalan Yaacob Latif, Kuala Lumpur 56000, Malaysia
[2] Natl Univ Galway, Galway, Ireland
[3] Med Univ Warsaw, Warsaw, Poland
[4] Univ Sultan Zainal Abidin, Fac Med, Kampus Kota, Kuala Terengganu 20400, Malaysia