TY - GEN TY - GEN T1 - To be born as a twin : risks and sequelae T2 - Acta Universitatis Ouluensis A1 - Moilanen, Irma, 1946- LA - eng PP - Oulu PB - University of Oulu YR - 1979 UL - https://kansalliskirjasto.finna.fi/kansalliskirjastofikka/Record/fikka.3316800 SN - 951-42-0772-6 nidottu ER -