RT Journal Article SR Electronic T1 Platelet alloantigen polymorphism and migraine headaches JF Neurosciences Journal JO Neurosciences (Riyadh) FD Prince Sultan Military Medical City SP 185 OP 186 VO 18 IS 2 A1 Shalini Bhaskar A1 Jafri M. Abdullah YR 2013 UL http://nsj.org.sa/content/18/2/185.abstract AB