[1] Childrens Natl Med Ctr, Ctr Canc & Immunol Res, Washington, DC 20010 USA
[2] Childrens Natl Med Ctr, Div Oncol, Washington, DC 20010 USA
[3] Southern Med Univ, Nanfang Hosp, Dept Neurol, Guangzhou, Guangdong, Peoples R China
[4] Childrens Natl Med Ctr, Res Anim Facil, Washington, DC 20010 USA
[5] Childrens Natl Med Ctr, Ctr Community & Clin Res, Washington, DC 20010 USA
[6] Childrens Natl Med Ctr, Div Pathol, Washington, DC 20010 USA