1. [1] Foster DW, Wilson F, Martin, et al. Harrison's principles of internal medicine. 14th edn. New York, McGraw-Hill 1998:2060-80.
2. [2] Jansen C, Greenspoon SJ, Palmer MS. In: Diabetes mellitus & pregnancy. 9th edn. Current obstetric & gynecologic diagnosis & treatment. People's Medical Publishing House 2003;18:317-21.
3. [3] Chmait R, Moore TR. Endocrine disorders in pregnancy. 8th edn. Avery's diseases of the new-born 2005:71-86.
4. [4] Krishna U, Shah D, Salvi V, et al. In: Gestational diabetes mellitus. Pregnancy at risk a practical approach to high risk pregnancy and delivery. 5th edn. New Delhi, Jaypee Brothers Medical Publishers 2010;245-51.
5. [5] Gary CF, Kenneth LJ, Steven BL, et al. In: Williams obstetrics. 23rd edn. Diabetes. New York, Mc Graw Hill Medical Publisher 2010:1104-25.