*[https://clinicaltrials.gov/study/NCT03883633 Reversal of Cognitive Decline (ReCODE) Study (RECODE), ClinicalTrials.gov ID NCT03883633. Sponsor QuesGen Systems] Inc | *[https://clinicaltrials.gov/study/NCT03883633 Reversal of Cognitive Decline (ReCODE) Study (RECODE), ClinicalTrials.gov ID NCT03883633. Sponsor QuesGen Systems] Inc |