TY - JOUR IS - 5 JO - Cephalalgia PY - 2018 SN - 0333-1024 VL - 38 AU - Goadsby PJ AU - Dodick DW AU - Lipton RB DO - 10.1177/0333102417722498 LA - en N1 - FEMU ID: 37556; EMF-Portal URL: https://www.emf-portal.org/en/article/37556 SP - 1007-1008 TI - Re: Placebo responses in device studies ER -