Guidelines for controlled trials of drugs in cluster headache.
Lipton
R B
RB
Department of Neurology, Montefiore Medical Center, Bronx, New York 10467, USA.
Micieli
G
G
Russell
D
D
Solomon
S
S
Tfelt-Hansen
P
P
Waldenlind
E
E
D000208:Acute Disease; D003027:Cluster Headache / Q000517:prevention & control / Q000628:therapy*; D018849:Controlled Clinical Trials as Topic; D003627:Data Interpretation, Statistical; D006801:Humans; D018579:Patient Selection; D012107:Research Design