[1] Univ Giessen, Dept Psychosomat & Psychotherapy, D-35392 Giessen, Germany
[2] Univ Goettingen, Dept Psychosomat Med & Psychotherapy, Gottingen, Germany
[3] James J Peters VA Med Ctr, Dept Vet Affairs, Mental Illness Res Educ & Clin Ctr, New York, NY USA
[4] Mt Sinai Sch Med, New York, NY USA