Headaches in Pregnancy
Semin Neurol 8:187-192, Reik,L., 1988
Postpartum Headache: Is Your Work-Up Complete?
Am J Obstet Gynecol 196:318.e1-318.e7, Stella,C.L.,et al, 2007
Spinal Manipulation in the Treatment of Episodic Tension-Type Headache
JAMA 280:1576-1579, Bove,G.&Nilsson,N., 1998