Transient Ischaemic Attacks Related to Carotid Stenosis Precipitated by Straining, Bending, and Sneezing
Postgrad Med J 75:145-146, Harrison, M.J.G., 1999
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