Birth position and obstetric anal sphincter injury: a population-based study of 113 000 spontaneous births
Crossref DOI link: https://doi.org/10.1186/s12884-015-0689-7
Published Online: 2015-10-09
Published Print: 2015-12
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Elvander, Charlotte
Ahlberg, Mia
Thies-Lagergren, Li
Cnattingius, Sven
Stephansson, Olof
License valid from 2015-10-09