Botulinum Toxin Type A for the Prophylaxis of Chronic Daily Headache: Subgroup Analysis of Patients Not Receiving Other Prophylactic Medications: A Randomized Double‐Blind, Placebo‐Controlled Study
2005 ◽
Vol 45
(4)
◽
pp. 315-324
◽
2005 ◽
Vol 45
(4)
◽
pp. 293-307
◽
2000 ◽
Vol 40
(4)
◽
pp. 300-305
◽