[1] King Abdulaziz Univ, Rabigh Med Coll, Surg & Med Educ Unit, Jeddah, Saudi Arabia
[2] Jinnah Sindh Med Univ, APPNA Inst Publ Hlth, Karachi, Pakistan
[3] Prince Wales Clin Sch, Sydney, NSW, Australia
[4] Australia Univ New South Wales, Sydney, NSW, Australia
[5] Univ New South Wales, Sch Publ Hlth & Community Med, Med Educ Dev, Sydney, NSW, Australia