1. Jones WHS: Hippocrates—With an English Translation, vol 1. London, Heinemann, 1923.
2. Esquirol E: Mental Maladies: A Treatise on Insanity (translated by EK Hunt). Philadelphia, Lea amp; Blanchard, 1845.
3. Marcé LV: Traité de la Folie des Femmes Encientes, de Nouvelles, Accouchées et de Nourrices. Paris, Baillière, 1858.
4. Seager C P: A controlled study of post-partum mental illness. J. Ment Sci 106: 214–230, 1960.
5. Mora G: Historical and theoretical trends in psychiatry, Freedman AM, Kaplan HI, and Sadock BJ (eds): Comprehensive Textbook of Psychiatry—II, ed 2, Vol 1. Baltimore, Williams & Wilkins, 1975, pp 1–75.