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
Physical Activity and Stroke in British Middle Aged Men
BMJ 304:597-601, Wannamethee,G.&Shaper,A.G., 1992