TY - T1 - A Twin Study on Genetic and Environmental Factors in Bipolar I Disorder SN - / UR - URN:ISBN:951-740-563-4; http://hdl.handle.net/10138/23026 T3 - A1 - Kieseppä, Tuula A2 - PB - Helsingin yliopisto Y1 - 2005 LA - en AB - ... VO - IS - SP - OP - KW - N1 - PP - ER -