[1] Cohen Childrens Med Ctr New York, New Hyde Pk, NY USA
[2] Thrombosis & Atherosclerosis Res Inst TaARI, Hamilton, ON, Canada
[3] Univ Witwatersrand, Johannesburg, South Africa
[4] Natl Hlth Lab Serv, Johannesburg, South Africa
[5] Pfizer Inc, New York, NY USA
[6] Pfizer Inc, Collegeville, PA USA
[7] Pfizer Inc, Groton, CT USA
[8] Pfizer Inc, Smolensk, Russia