This is a "connection" page, showing publications co-authored by Eugene Viscusi and Michael Marmura.
Pomeroy JL, Marmura MJ, Nahas SJ, Viscusi ER. Ketamine Infusions for Treatment Refractory Headache. Headache. 2017 Feb; 57(2):276-282.
The connection strength for concepts is the sum of the scores for each matching publication.
Publication scores are based on many factors, including how long ago they were written and whether the person is a first or senior author.