Nordic Obstetric Surveillance Study (NOSS). Preliminary results and perspectives
Colmorn, Lotte Berdiin; Petersen, Kathrine Birch; Jakobsson, Maija; Tapper, Anna-Maija; Gissler, Mika; Lindqvist, Pelle; Gottvall, Karin; Kallen, Karin; Klungsoyr, Kari; Bordahl, Per; Bjarnasdottir, Inga; Rasmussen, Steen; Krebs, Lone; Langhoff-Roos, Jens (2012)