Central cognitive processing assessed by P300 in migraine, tension‑type headache, and cluster headache - Singh, Arun; Joshi, Deepika; Yadav, Ranveer; Sinha, Prakash; Sharda, Vivek; Yadav, Ajay; Chaudhary, Sandeep; Kawale, Sagar; Gupta, Garima; Mishra, Vijay Nath; Chaurasia, Rameshwar Nath; Pathak, Abhishek (International Journal of Clinical and Experimental Physiology, 2015)