Manfred Mueller is a homeopathic practitioner and educator. His entry in Yasgur's Dictionary says:

"Manfred is a German-born U.S. homeopath who pioneered "Reverse Chronological Tautopathy" ("clearing remedies") — a systematic approach to removing the secondary effects of past suppressions (as from antibiotics, steroids, NSAIDS, vaccines, etc.) by a brief "pre-treatment" with the same or similar substance in potentized form."

Christina Mueller is a Homeopathic Practitioner who was in private practice with Manfred Mueller. She trained at The Homeopathic College and she completed a clinical apprenticeship at Homeopathic Associates from 2004-2012. She’s certified in The Mueller Method™ of Homeopathy. She has been a Member of The North American Society of Homeopathy (NASH) since 2014, and an Associate Member since 2016.