[1] Oklahoma Med Res Fdn, Cell Cycle & Canc Biol, 825 NE 13th St, Oklahoma City, OK 73104 USA
[2] Oklahoma Med Res Fdn, Arthrit & Clin Immunol, 825 NE 13th St, Oklahoma City, OK 73104 USA
[3] Univ Oklahoma, Hlth Sci Ctr, Dept Cell Biol, Oklahoma City, OK USA