title: Retraction: Activation of human oral epithelial cells by neutrophil proteinase 3 through protease-activated receptor-2.
authors.affiliation: Tohoku University Graduate School of Dentistry, Sendai, Japan.
authors.forename: Shunji
authors.initials: S
authors.lastname: Sugawara
authors.forename: Koji
authors.initials: K
authors.lastname: Muramoto