[1] Univ Sains Malaysia, Sch Hlth Sci, Hlth Campus, Kubang Kerian 16150, Kelantan, Malaysia
[2] Univ Sains Malaysia, Hosp Univ Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
[3] Hosp Sultan Haji Ahmad Shah, Temerloh, Pahang, Malaysia
[4] Hosp Seberang Jaya, Perai, Pulau Pinang, Malaysia
[5] Univ Gezira, Natl Canc Inst, HLA Lab, Wad Madani, Sudan
[6] Sheikh Khalifa Med City, Dept Immunol Pathol & Lab Med Serv, Abu Dhabi, U Arab Emirates
[7] Victoria Univ Wellington, Sch Biol Sci, Wellington, New Zealand