Eric Walker added Large study links gum disease with dementia | National Institute on Aging to Porphyromonas gingivalis, and added Porphyromonas gingivalis to Porphyromonas

Eric Walker added Porphyromonas gingivalis to Porphyromonas, and added Porphyromonas to Porphyromonadaceae

Eric Walker added Porphyromonas to Porphyromonadaceae, and added Porphyromonadaceae to Bacteroidales