Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Gary R. Goldstein and L. Kiremidjian-Schumacher,Bleaching: Is it safe and effective?,The Journal of Prosthetic Dentistry,0022-3913,Elsevier BV,1993-03,69,3,325-328,https://cir.nii.ac.jp/crid/1360292619368325632,https://doi.org/10.1016/0022-3913(93)90114-4