1. Niwa K, Aomi S, Akagi T, et al Diagnosis and treatment of cardiovascular diseases (2009 Joint Working Groups Report). Guidelines for indication and management of pregnancy and delivery in women with heart disease (JCS 2010, revised).
http://www.j-circ.or.jp/guideline/pdf/JCS2010niwa.h.pdf
2. JCS Joint Working Group (2012) Guidelines for indication and management of pregnancy and delivery in women with heart disease (JCS 2010) digest version. Circ J 76:240–260
3. Gelson E, Ogueh O, Johnson M (2006) Cardiac changes in normal pregnancy. In: Steer PJ, Gatzoulis MA, Baker P (eds) Heart disease and pregnancy. RCOG Press, London, pp 29–44
4. Mabie WC, DiSessa TG, Crocker LG et al (1994) A longitudinal study of cardiac output in normal human pregnancy. Am J Obstet Gynecol 170:849–856
5. Poppas A, Shroff SG, Korcarz CE et al (1997) Serial assessment of the cardiovascular system in normal pregnancy. Circulation 95:2407–2415