Cephalalgia | July 19, 2005 | Volume: 25 | Issue: 8 | Pages: 633-635
Cephalalgia | November 20, 2003 | Volume: 23 | Issue: 10 | Pages: 994-997
Cephalalgia | March 11, 2003 | Volume: 23 | Issue: 1 | Pages: 2-5
10.1046/j.1468-2982.2003.00478.x
Cephalalgia | March 11, 2003 | Volume: 22 | Issue: 6 | Pages: 439-443
10.1046/j.1468-2982.2002.00385.x