“…Patients were recruited by searching the computerized record keeping system of the Mental Health Organization (GGZ inGeest, Amsterdam, the Netherlands) and were selected when they received treatment during the time between January 1, 2012 and December 31, 2013 (details described elsewhere, Dols et al, 2014). Additional patients were recruited from our study of cognitive functioning in older bipolar patients from outpatient clinics in other regions, as described elsewhere (Schouws et al, 2009).…”