Headache and PregnancyThe Neurologist 14:108-119, Menon,R. &Bushnell,C.D., 2008
A 47-Year-Old Woman with Tension-Type HeadachesJAMA 286:960-966, Welch,K.M.A., 2001
Migraine in PregnancyNeurol 53:S26-S28, Aube,M., 1999