•Kelley Bowden, Dale Kessler, Mike Pinette and Elizabeth Wilson“Underwater Birth: Missing the Evidence or Missing the Point?”Pediatrics2003

•Ruth E Gilbert and Pat A Tookey“Perinatal mortality and morbidity among babies delivered in water: surveillance study and postal survey”BMJ483-487;319; 1999

•Salagnac, Berthe. Naissance et acupuncture.Bruxelles: SATAS, 1998

•2009-Borup L1, Wurlitzer W, Hedegaard M, Kesmodel US, Hvidman L.

•Acta Obstet Gynecol Scand. 1982;

•Carrol D, Tramer M, McQuay H et al. Transcutane ous electrical nerve stimulation in labour pain: a systemic review. Br J Obst et Gynaecol 1997

•Hodnett ED, Gates S, Hofmeyr G J, SakalaC. Continuous support for women during childbirth (Cochrane Review). In: The Cochrane Library, Issue 4, 2003. Chichester, UK: John Wiley & Sons, Ltd

•HodnettED, et al. Effectiveness of nurses as providers of birth labor support in North American hospitals: arandomized controlled trial. JAMA 2002;288:1373-81 [Medline]- Continuous support for women during childbirth. Cochrane Database Syst Rev. 2011[Medline] - Effectiveness of Nurses as Providers of Birth Labor Support in North American Hospitals: arandomized Controlled Trial. JAMA 2002; [Medline]

•(AUDITORE-PASINI, 1998) A.AUDITORE–F. PASINI, Musicoterapia preventiva e profilassi della gravidanza e del puerperio, in Le applicazioni della musicoterapica: ambiti di intervento e aspetti formativi, IX Convegno APIM – Conservatorio “G.Verdi” Torino, 2002.

•Hodnett ED, et al. Continuous support forwomen during childbirth. Cochrane Database of Systematic Reviews 2011;[Medline]

•Hatem M, et al. Midwife-led versus other models of care for childbearing women. Cochrane Database of Systematic Reviews 2008;