Harding, W. (1903). Puerperal insanity. In W. Harding, The Burdett series of popular text-books on nursing: Vol. 9. Mental nursing (pp. 65-91). London, Great Britain: The Scientific Press.
http://dx.doi.org/10.1037/12430-006
The term puerperal insanity has been used to denote those forms of mental disorder which arise during pregnancy, at or shortly after delivery, or during the months when the mother is suckling the infant. It thus includes very different conditions, which are more conveniently described as: (1) the insanity of pregnancy; (2) puerperal insanity (properly so-called); (3) the insanity of lactation, or that form of mental disorder in the production of which the exhaustion caused by nursing the child plays an important part. (PsycINFO Database Record (c) 2016 APA, all rights reserved)