Tapiero, H, Gate, L, Tew, KD. Iron: deficiencies and requirements. Biomed Pharmacother 2001; 55: 324–32.CrossRefGoogle ScholarPubMed

Paidas, MJ, Hossain, N. Hematologic changes in pregnancy. In Paidas, MJ, Hossain, N, Shamsi, T, et al., eds. Hemostasis and Thrombosis in Obstetrics and Gynaecology. Oxford: Wiley-Blackwell, 2011, pp. 1–11.Google Scholar

Shamsi, T. Red cell disorders. In Paidas, MJ, Hossain, N, Shamsi, T, et al., eds. Hemostasis and Thrombosis in Obstetrics and Gynaecology. Oxford: Wiley-Blackwell, 2011, pp. 12–27.CrossRefGoogle Scholar

National Institute for Health and Care Excellence (NICE); National Collaborating Centre for Women’s and Children’s Health. Antenatal Care: Routine Care for the Healthy Pregnant Woman. NICE Clinical Guideline CG62. London: NICE, 2008.Google Scholar

World Health Organization. Iron Deficiency Anaemia: Assessment, Prevention, and Control. A Guide for Programme Managers. Geneva: WHO, 2001. http://www.who.int/nutrition/publications/en/ida_assessment_prevention_control.pdf (accessed 8 October 2015).Google Scholar

Ziaei, S, Norrozi, M, Faghihzadeh, S, Jafarbegloo, E. A randomised placebo-controlled trial to determine the effect of iron supplementation on pregnancy outcome in pregnant women with haemoglobin ≥ 13.2 g/dl. BJOG 2007; 114: 684–8.CrossRefGoogle ScholarPubMed

Pavord, S, Myers, B, Robinson, S, et al. UK guidelines on the management of iron deficiency in pregnancy. Br J Haematol 2012; 156: 588–600.CrossRefGoogle ScholarPubMed

Joint Formulary Committee. British National Formulary, 66th ed. London: BMJ Group and Pharmaceutical Press, 2013.Google Scholar

National Institute for Health and Care Excellence (NICE). Diabetes in Pregnancy: Management from Preconception to the Postnatal Period. NICE Guideline NG3. London: NICE, 2015.Google Scholar

Scottish Intercollegiate Guidelines Network (SIGN). Management of Diabetes: a National Clinical Guideline. SIGN Guideline No. 116. Edinburgh: SIGN, 2010.Google Scholar

Crowther, CA, Hiller, JE, Moss, JR, et al.; Australian Carbohydrate Intolerance Study in Pregnant Women (ACHOIS) Trial Group. Effect of treatment of gestational diabetes mellitus on pregnancy outcomes. N Engl J Med 2005; 352: 2477–86.CrossRefGoogle Scholar

Landon, MB, Spong, CY, Thom, E, et al. A multicenter, randomized trial of treatment for mild gestational diabetes. N Engl J Med 2009; 361: 1339–48.CrossRefGoogle ScholarPubMed

International Association of Diabetes and Pregnancy Study Groups Consensus Panel. International association of diabetes and pregnancy study groups recommendations on the diagnosis and classification of hyperglycemia in pregnancy. Diabetes Care 2010; 33: 676–82.Google Scholar

De Groot, L, Abalovich, M, Alexander, EK, et al. Management of thyroid dysfunction during pregnancy and postpartum: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab 2012; 97: 2543–65.CrossRefGoogle ScholarPubMed

Melmed, S, Casanueva, FF, Hoffman, AR, et al. Diagnosis and treatment of hyperprolactinemia: an Endocrine Society clinical practice guideline. J Clin Endocrinol Metab 2011; 96: 273–88.CrossRefGoogle ScholarPubMed

HAPO Study Cooperative Research Group. Hyperglycemia and adverse pregnancy outcomes. N Engl J Med 2008; 358: 1991–2002.CrossRefGoogle Scholar

Frise, CJ, Nelson-Piercy, C. Peptic ulcer disease in pregnancy. J Obstet Gynaecol 2012; 32: 804–11.CrossRefGoogle ScholarPubMed

Crohn’s and Colitis UK. Pregnancy and IBD, edition 6a. St Albans: Crohn’s and Colitis UK, 2013.Google Scholar

Royal College of Obstetricians and Gynaecologists. Obstetric Cholestasis. Green-top Guideline No. 43. London: RCOG, 2011.Google Scholar

Knight, M. Acute fatty liver of pregnancy in the UK: A national study to describe disease incidence, prognostic factors, management and outcomes. On behalf of UK Obstetric Surveillance System (UKOSS). 2007.Google Scholar

Ryan, K, Bain, BJ, Worthington, D, et al. Significant haemoglobinopathies: guidelines for screening and diagnosis. Br J Haematol 2010; 149: 35–49.CrossRefGoogle ScholarPubMed

Royal College of Obstetricians and Gynaecologists. Management of Sickle Cell Disease in Pregnancy. Green-top Guideline No. 61. London: RCOG, 2011.Google Scholar

Streetly, A, Latinovic, R, Henthorn, J. Positive screening and carrier results for the England-wide universal newborn sickle cell screening programme by ethnicity and area for 2005–07. J Clin Pathol 2010; 63: 626–9.CrossRefGoogle ScholarPubMed

Telfer, P, Coen, P, Chakravorty, S, et al. Clinical outcomes in children with sickle cell disease living in England: a neonatal cohort in East London. Haematologica 2007; 92: 905–12.CrossRefGoogle Scholar

NHS. NHS Sickle Cell and Thalassaemia Screening Programme. Standards for the Linked Antenatal and Newborn Screening Programme. London: UK National Screening Committee, 2011.Google Scholar

National Institute for Health and Care Excellence (NICE). Hypertension in Pregnancy: the Management of Hypertensive Disorders during Pregnancy. NICE Clinical Guideline CG107. London: NICE, 2010.Google Scholar

National Institute for Health and Care Excellence (NICE). Intrapartum Care. NICE Clinical Guideline CG55. London: NICE, 2008.Google Scholar

National Institute for Health and Care Excellence (NICE). Sickle Cell Acute Painful Episode: Management of an Acute Painful Sickle Cell Episode in Hospital. NICE Clinical Guideline CG143. London: NICE, 2012.Google Scholar

George, JN, Woolf, SH, Raskob, GE, et al. Idiopathic thrombocytopenic purpura: a practice guideline developed by explicit methods for the American Society of Hematology. Blood 1996; 88: 3–40.CrossRefGoogle ScholarPubMed

Scully, M, Yarranton, H, Liesner, R, et al. Regional UK TTP registry: correlation with laboratory ADAMTS 13 analysis and clinical features. Br J Haematol 2008; 142: 819–26.CrossRefGoogle ScholarPubMed

Scully, M, Hunt, BJ, Benjamin, S, et al. Guidelines on the diagnosis and management of thrombotic thrombocytopenic purpura and other thrombotic microangiopathies. Br J Haematol 2012; 158: 323–35.CrossRefGoogle ScholarPubMed

Bussel, JB, Berkowitz, RL, McFarland, JG. Maternal IVIG in neonatal alloimmune thrombocytopenia. Br J Haematol 1997; 98: 493–4.Google ScholarPubMed

Kjeldsen-Kragh, J, Killie, MK, Tomter, G, et al. A screening and intervention program aimed to reduce mortality and serious morbidity associated with severe neonatal alloimmune thrombocytopenia. Blood 2007; 110: 833–9.CrossRefGoogle ScholarPubMed

Royal College of Obstetricians and Gynaecologists. Reducing the Risk of Thrombosis and Embolism during Pregnancy and the Puerperium. Green-top Guideline No. 37a. London: RCOG, 2009.Google Scholar

Keeling, D, Mackie, I, Moore, GW, Greer, IA, Greaves, M. Guidelines on the investigation and management of antiphospholipid syndrome. Br J Haematol 2012; 157: 47–58.CrossRefGoogle Scholar

Kehoe, S, Jauniaux, E, Martin-Hirsch, P, Savage, P. Consensus views arising from the 55th Study Group: cancer and reproductive health. In Cancer and Reproductive Health. London: RCOG Press, 2008, chapter 22.CrossRefGoogle Scholar

Royal College of Obstetricians and Gynaecologists. Pregnancy and Breast Cancer. Green-top Guideline No. 12. London: RCOG, 2011.Google Scholar

Royal College of Obstetricians and Gynaecologists. The Management of Gestational Trophoblastic Disease. Green-top Guideline No. 38. London: RCOG, 2010.Google Scholar

WHO. Obesity and Overweight. Fact Sheet no. 311. Geneva: World Health Organization, 2013.Google Scholar

Rasmussen, SA, Chu, SY, Kim, SY, Schmid, CH, Lau, J. Maternal obesity and risk of neural tube defects: a metaanalysis. Am J Obstet Gynecol 2008; 198: 611–19.CrossRefGoogle ScholarPubMed

Mojtabai, R. Body mass index and serum folate in childbearing age women. Eur J Epidemiol 2004; 19: 1029–36.CrossRefGoogle ScholarPubMed

Centre for Maternal and Child Enquiries; Royal College of Obstetricians and Gynaecologists. Management of Women with Obesity in Pregnancy. CMACE/RCOG Joint Guideline. London: CMACE/RCOG, 2010.Google Scholar

Royal College of Obstetricians and Gynaecologists. Reducing the Risk of Thrombosis and Embolism during Pregnancy and the Puerperium. Green-top Guideline No. 37a. London: RCOG, 2009.Google Scholar

National Institute for Health and Care Excellence (NICE). Hypertension in Pregnancy: the Management of Hypertensive Disorders during Pregnancy. NICE Clinical Guideline CG107. London: NICE, 2010.Google Scholar

Glazer, NL, Hendrickson, AF, Schellenbaum, GD, Mueller, BA. Weight change and the risk of gestational diabetes in obese women. Epidemiology 2004; 15: 733–7.CrossRefGoogle ScholarPubMed

Orozco, LJ, Buchleitner, AM, Gimenez-Perez, G, et al. Exercise or exercise and diet for preventing type 2 diabetes mellitus. Cochrane Database Syst Rev 2008; (3): CD003054.Google Scholar

Royal College of Physicians. Action on Obesity: Comprehensive Care for All. Report of a Working Party. London: RCP, 2013.Google Scholar

Davison, JM, Nelson-Piercy, C, Kehoe, S, Baker, P. Consensus views arising from the 54th Study Group: renal disease in pregnancy. In Renal Disease in Pregnancy. London: RCOG Press, 2008, chapter 20.CrossRefGoogle Scholar

Krane, NK. Renal disease and pregnancy. Medscape 2013. http://emedicine.medscape.com/article/246123-overview (accessed 4 October 2015).Google Scholar

Hou, S. Pregnancy in chronic renal insufficiency and end-stage renal disease. Am J Kidney Dis 1999; 33: 235–52.CrossRefGoogle ScholarPubMed

Ambros-Rudolph, CM. Dermatoses of pregnancy: clues to diagnosis, fetal risk and therapy. Ann Dermatol 2011; 23: 265–75.CrossRefGoogle ScholarPubMed

Beard, MP, Millington, GW. Recent developments in the specific dermatoses of pregnancy. Clin Exp Dermatol 2012; 37: 1–5.CrossRefGoogle ScholarPubMed

Primary Care Dermatology Society; British Association of Dermatologists. Guidelines for the management of atopic eczema. Skin 2009; 39: 399–402.Google Scholar