[1] St Lukes Med Ctr, Quezon City 1102, Philippines
[2] Natl Kidney & Transplant Inst, Quezon City 1102, Philippines
[3] Mol Cytogenet Lab, Res & Biotechnol Div, Quezon City 1102, Philippines
[4] Dept Dermatol, Quezon City 1102, Philippines
[5] Inst Pathol, Quezon City 1102, Philippines
[6] De La Salle Univ, CENSER Coll Sci, Dept Phys, Manila, Philippines
[7] Univ Philippines, Gen Hosp, Dept Pathol, Manila, Philippines
[8] Univ Philippines, Hematol Oncol Sect, Dept Pediat, Manila, Philippines