References
- Østergaard M, Bonde B, Thomsen BS. Pelvic insufficiency during pregnancy (Summary in English). Ugeskr Læger 1992; 154: 3568–72.
- Kogstad O, Bjørnstad N. Pelvic girdle relaxation (Summary in English). Tidsskr Nor Lægeforen 1990; 110: 2209–11.
- Heiberg EE. Pelvic pain and low back pain in pregnant women – an epidemiological study. Scand J Rheumatol 1995; 24: 135–44.
- Kristiansson P, Svärdsudd K, von Schoultz B. Prediction of symphyseal pain and back pain during pregnancy. Submitted for publication. Included in the Thesis: Back pain and symphyseal pain during pregnancy. Uppsala University, 1996.
- MacLennan AH, Nicolson R, Green RC, Bath M. Serum relaxin and pelvic pain of pregnancy. Lancet 1986; ii: 243–5.
- Hansen A, Jensen DV, Larsen E, Wilken-Jensen C, Pedersen LK. Relaxin is not related to symptom-giving pelvic girdle relaxation in pregnant women. Acta Obstet Gynecol Scand 1996; 75: 245–9.
- Kristiansson P, Svärdsudd K, von Scholtz B. Serum relaxin, symphyseal pain and back pain during pregnancy. Am J Obstet Gynecol 1996; 175(5): 1342–7.
- Voigt S. Sicklisting in pregnancy. Extent, diagnostic panorama and instance of sicklisting (Summary in English). Ugeskr Læger 1993; 2: 86–9.
- Rasmussen OB, Sørensen AU, Nielsen CV Sick leave among pregnant women in the community of Fjends 19871990 (Summary in English). Ugeskr Læger 1996; 49: 7069–73.
- Hansen A, Jensen DV, Wormslev M, Minck H, Johansen S, Larsen EC et al. Symptom-giving pelvic girdle relaxation in pregnancy II: Symptoms and clinical signs. Acta Obstet Gynecol Scand 1999; 78: 111–15.
- Dixon WJ (ed.) et al. BMDP Statistical Software Manual vol 1 & 2. University of California Press, Los Angeles, 1990.
- Ostgaard HC, Andersson GBJ, Karlsson K. Prevalence of back pain in pregnancy. Spine 1991; 16: 549–52.
- Dietrichs E, Kogstad O. ‘Pelvic Girdle Relaxation’ – Suggested new nomenclature. Scand J Rheumatol 1991; Suppl. 88: 3.
- Kristiansson P, Svärdsudd K, von Schoultz B. Back pain during pregnancy. A prospective study. Spine 1996; 21: 702–9.
- Kogstad O. Bekkenlosning. En kontroversiell diagnose. Tidsskr Nor Lægeforen 1988; 108: 1115–19.
- Mantle MJ, Holmes J, Currey HLF. Backache in pregnancy II: Prophylactic influence of back care classes. Rheumatol Rehab 1981; 20: 227–32.
- Östgaard HC, Zetherström G, Roos-Hansson E, Svanberg B. Reduction of back and posterior pelvic pain in pregnancy. Spine 1994; 8: 894–900.