Getting Pregnant Prenatal Care Pregnancy Calendar Labor and Birth Pregnancy Complications Pregnancy Loss Babies Twins and Multiples Postpartum Care
emedicine.com : http://www.emedicine.com/med/topic3316.htm
fetalmedicine.com : http://www.fetalmedicine.com/11-14book/chap4/chap04-04.htm
dlife.com : http://www.dlife.com/dLife/do/ShowContent/gestational/preventing_complications/
patients.uptodate.com : http://patients.uptodate.com/topic.asp?file=pregnan/2462
womens-health.health-cares.net : http://womens-health.health-cares.net/
mayoclinic.com : http://www.mayoclinic.com/health/pregnancy/PR00125
utsouthwestern.org: http://www.utsouthwestern.org/
marchofdimes.com : http://www.marchofdimes.com/professionals/14332_1154.asp
womens-health.co.uk
gynob.com : http://gynob.com/complica.htm
kidshealth.org : http://www.kidshealth.org/parent/pregnancy_newborn/pregnancy/rh.html
parenting.ivillage.com : http://parenting.ivillage.com/