Dr. Paul Thomas on YouTube: Why You Should Be Taking Vitamin B12 by Sally Pacholok, RN | Sep 1, 2014 | Media, Press | 0 comments Dr. Paul Thomas hosts a YouTube channel called Pediatric Advice (paulthomasmd). He recently posted an excellent video about a case of vitamin B12 deficiency in a 9 month old baby. It’s 5 minutes in length and well worth taking the time to watch. http://www.youtube.com/watch?v=8JVJKBwDCd8