https://www.youtube.com/watch?v=-SYL-iU0E9Q
Video works. Dr. Been has been producing instruction videos for medical students, for some time. I had a bit of difficulty getting acquainted with his accent (took me a while to understand he was saying “messinger RNA” for mRNA), but eventually I caught on.
His videos require a willingness to study, and focus upon, the mechanisms that he explains. His website:
His video library, there:
https://members.drbeen.com/explore
The answers to a lot of questions - specifics - that members of FR have, and have had, are many times revealed in the course of studying Dr. Been’s videos.
I meant to add, that Dr. Been has some other links to his older videos; and there are several of his videos at YouTube.
https://members.drbeen.com/browse
https://www.youtube.com/channel/UCrtd2wePvAl6RN_D-9jWVQQ