The association between gingivitis and oral spirochetes in young cats and dogs. - Yamaki, Seiya; Tachibana, Masato; Hachimura, Hisae; Ogawa, Masao; Kanegae, Shinya; Amimoto, Hirokazu; Shimizu, Takashi; Watanabe, Kenta; Watarai, Masahisa; Amimoto, Akiteru (PLoS ONE, 2023)