%0 Journal Article %T Does progestin-only contraceptive use after pregnancy affect recovery from pelvic girdle pain? A prospective population study %A Bo Lars Engdahl %A Elisabeth Krefting Bjelland %A Hedvig Marie Egeland Nordeng %A Katrine Mari Owe %A Malin Eberhard-Gran %A Per Kristiansson %A Siri Vangen %J Archive of "PLoS ONE". %D 2017 %R 10.1371/journal.pone.0184071 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5593199/