Dr Paolo Zamboni replies to the flawed methodology in the Canadian research study titled "Prevalence of extracranial venous narrowing on catheter venography in people with multiple sclerosis, their siblings, and unrelated healthy controls: a blinded, case-control study".
Please share the following link to other MS societal Facebook and Twitter accounts and to the Lancet journal (publisher of the study) whose editors chose to ignore Dr. Zamboni's letter of reply.

http://www.pagepressjournals.org/index.php/vl/article/view/vl.2014.4195


How to objectively assess jugular primary venous obstruction | Zamboni | Veins and Lymphatics
www.pagepressjournals.org
How to objectively assess jugular primary venous obstruction