Talk:Drug delivery to the brain

Hello.

In the physiology section, you said that Oxygen and Carbon Dioxide are actively transported through the blood brain barrier. They are not. here is a source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3757302/pdf/fneng-06-00007.pdf

Thanks,

Jeffrey Boucher — Preceding unsigned comment added by 176.142.6.207 (talk) 22:15, 10 February 2019 (UTC)