cysteine/headache

CROSS REFERENCE TO RELATED APPLICATIONS This application is a National Stage of International Application No. PCT/F12013/050582 filed May 28, 2013, claiming priority based on Finnish Patent Application No. 20125570 filed May 28, 2012, the contents of all of which are incorporated herein by reference

CROSS REFERENCE TO OTHER APPLICATIONS This is a non-provisional patent specification and claims submitted for an official filing receipt under Patent Code 111(a). BACKGROUND OF THE INVENTION Headaches range from the rare and excruciating type, known as clusters, through the common tension-type