Authors: V Pfaffenrath; P Wessely; C Meyer; H R Isler; S Evers; K H Grotemeyer; Z Taneri; D Soyka; H Göbel; M Fischer Journal: Cephalalgia Date: 1996-10 Impact factor: 6.292
Authors: N T Mathew; J R Saper; S D Silberstein; L Rankin; H G Markley; S Solomon; A M Rapoport; C J Silber; R L Deaton Journal: Arch Neurol Date: 1995-03