12
Participants
Start Date
February 28, 2014
Primary Completion Date
December 31, 2014
Study Completion Date
December 31, 2014
Carbon monoxide
carbon monoxide, 4.7, Purity 99.997, inhalation of carbon monoxide in a volume corresponding to carboxyhemoglobin 10 and 20%, calculated from baseline Hg and body mass.
Placebo
Danish Headache Center, Glostrup Municipality
Danish Headache Center
OTHER