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Jenkins, A;Millar, S; Robins, J«Denial of pregnancy: a literature review and discussion of ethical and legal issues.».Journal of the Royal Society of Medicine,104,7,2011 Jul,p.286–91. DOI: 10.1258/jrsm.2011.100376. PMID: 21725094.
Verhaegen, J;Gallos, ID; van Mello, NM; Abdel-Aziz, M; Takwoingi, Y; Harb, H; Deeks, JJ; Mol, BW; Coomarasamy, A«Accuracy of single progesterone test to predict early pregnancy outcome in women with pain or bleeding: meta-analysis of cohort studies.».BMJ (Clinical research ed.),345,27-09-2012. e6077. DOI: 10.1136/bmj.e6077. PMC: 3460254. PMID: 23045257.
Wing Yee Fok;Louis Yik-Si Chan, Pong Mo Yuen«Sexual behavior and activity in Chinese pregnant women».Acta Obstetricia et Gynecologica Scandinavica,84,10,d'octubre de 2005,p.934–938. DOI: 10.1111/j.0001-6349.2005.00743.x. PMID: 16167907.
Ornoy, A;Ergaz, Z«Alcohol abuse in pregnant women: effects on the fetus and newborn, mode of action and maternal treatment.».International journal of environmental research and public health,7,2,2010 Feb,p.364–79. DOI: 10.3390/ijerph7020364. PMC: 2872283. PMID: 20616979.
Hackshaw, A;Rodeck, C; Boniface, S«Maternal smoking in pregnancy and birth defects: a systematic review based on 173 687 malformed cases and 11.7 million controls.».Human reproduction update,17,5,2011 Sep-Oct,p.589–604. DOI: 10.1093/humupd/dmr022. PMC: 3156888. PMID: 21747128.
Irner, TB«Substance exposure in utero and developmental consequences in adolescence: a systematic review.».Child neuropsychology: a journal on normal and abnormal development in childhood and adolescence,18,6,2012,p.521–49. DOI: 10.1080/09297049.2011.628309. PMID: 22114955.
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nlm.nih.gov
MedlinePlus > Breast pain Update Date: 31 de desembre de 2008. Updated by: David C. Dugdale, Susan Storck. Also reviewed by David Zieve.
Women's Health InformationArxivat 2007-04-30 a Wayback Machine., Hearthstone Communications Limited: «The risk of miscarriage decreases dramatically after the 8th week as the weeks go by.» Retrieved 2007-04-22.
«Pregnancy Symptoms». National Health Service (NHS),11-03-2010. Arxivat de l'original el 2010-02-28.[Consulta: 11 març 2010].
Víctor M. Espinosa de los Reyes Sánchez;Sergio Azcárate Sánchez Santos«Cambios fisiológicos durante el embarazo».Programa de Actualización Continua para Ginecología y Obstetricia,libro 1,Vigilancia prenatal,1997-1998,p.18. Arxivat de l'original el 2008-03-16[Consulta: 25 gener 2008].Arxivat 2008-03-16 a Wayback Machine.
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«NHS Pregnancy Planner». National Health Service (NHS),19-03-2010. Arxivat de l'original el 2021-08-29.[Consulta: 19 març 2010].
Women's Health InformationArxivat 2007-04-30 a Wayback Machine., Hearthstone Communications Limited: «The risk of miscarriage decreases dramatically after the 8th week as the weeks go by.» Retrieved 2007-04-22.