TY - BOOK AU - Critchley, Macdonald. AU - Friedman, Arnold P. AU - Granger, Mary Elizabeth, ED - World Federation of Neurology. ED - World Congress of Neurology TI - Headache today--an update by 21 experts T2 - Research and clinical studies in headache SN - 3805529244 PY - 1978/// CY - Basel ; New York PB - Karger KW - Headache N1 - Symposium held as part of the 11th World Congress of Neurology ER -