RT Article T1 Association between nonspecific severe psychological distress as an indicator of serious mental illness and increasing levels of medical multimorbidity JF American journal of public health VO 104 IS 12 SP 2350 OP 2358 A1 Swartz, James A. 1955- A2 Jantz, Ian LA English YR 2014 UL https://krimdok.uni-tuebingen.de/Record/1912464047 DO 10.2105/AJPH.2014.302165