[1] Univ New Mexico, Sch Med, Dept Med, Albuquerque, NM 87108 USA
[2] Univ New Mexico, Ctr Hlth Sci, Dept Pathol, Albuquerque, NM USA
[3] Univ New Mexico, Ctr Hlth Sci, Dept Pediat, Albuquerque, NM USA
[4] Univ New Mexico, Ctr Hlth Sci, Dept Med, Albuquerque, NM USA
[5] Univ New Mexico, Ctr Hlth Sci, Gen Clin Res Ctr, Albuquerque, NM USA