Pituitary Apoplexy:Its Incidence & Clinical Significance
J Neurosurg 55:187-193, Wakai,S.,et al, 1981
Postpartum Headache: Is Your Work-Up Complete?
Am J Obstet Gynecol 196:318.e1-318.e7, Stella,C.L.,et al, 2007
Pituitary Infarction & Development of the Empty Sella Syndrome After Gastrointestinal Haemorrhage
BMJ 289:661-662, Veldhuis,J.D.,et al, 1984