When engineers conduct research on groundwater, the water that flows beneath Earth's surface, they usually think of "large-scale" as one watershed -- an area of land where all of the water on it or ...

Patients treated four cluster headache episodes alternately with high-flow oxygen (inhaled oxygen at 100 percent, 12 L/min, delivered by face mask, for 15 minutes at the start of an attack) ...

Patients with a cluster headache, which is characterized by bouts of excruciating pain usually near the eye or temple, were more likely to report being pain free within 15 minutes of treatment ...

Effectiveness of oxygen and other acute treatments for cluster headache: results from the cluster headache questionnaire, an international survey [published January 11, 2019]. Headache. doi: 10. ...

Patients with a cluster headache, which is characterized by bouts of excruciating pain usually near the eye or temple, were more likely to report being pain-free within 15 minutes of treatment ...