[1] VAMC, Ann Arbor, MI USA
[2] Hosp Gen Valle Hebron, Barcelona, Spain
[3] Univ Heidelberg, Heidelberg, Germany
[4] Tokai Univ, Kanagawa 2591100, Japan
[5] Wakayama Med Univ, Wakayama, Japan
[6] Tokyo Med & Dent Univ, Tokyo, Japan
[7] Amgen Inc, Thousand Oaks, CA 91320 USA
[8] URREA, Ann Arbor, MI USA