Evidence-based medicine in obstetrics: can levels B and C recommendations be elevated to level A recommendations?
Evidenced-Based Medicine Obstetric Group:; Chauhan SP, Chang E, Brost B, Assel B, Baxter J, Smith JA Jr, Grobman R, Berghella V, Scardo JA, Magann EF, Morrison JC.
Evidenced-Based Medicine Obstetric Group:, et al. Among authors: berghella v.
Obstet Med. 2009 Jun;2(2):63-6. doi: 10.1258/om.2009.080031. Epub 2009 May 22.
Obstet Med. 2009.
PMID: 27582813
Free PMC article.