Angina pectoris: a Headache
Lancet 356:998, Lanza,G.A. et al, 2000
Cardiac Cephalgia:A Treatable Form of Exertional Headache
Neurol 49:813-816, Lipton,R.B.,et al, 1997
Cough, Exertional, and Sexual Headaches:An Analysis of 72 Benign and Symptomatic Cases
Neurol 46:1520-1524, Pascual,J.,et al, 1996
Headaches Related to Sexual Activity
JNNP 39:1226, Lance,J.W., 1976