First episode bipolar disorder: systematic comparison of incidence with other affective and non-affective psychoses among an epidemiologically complete, rural population - Baldwin,P.A.; Scully,P.J.; Quinn,J.F.; Morgan,M.G.; Kinsella,A.; O"Callaghan,E.; Owens,J.M.; Waddington,J.L. (Bipolar Disord, 2002)