Combined oral lichen planus and oral lichenoid contact hypersensitivity reaction in a patient with Hashimoto's thyroiditis - Sumako Suzuki; Yuta Yamashita; Masahito Fujio; Yuriko Hanai; Haruka Koizumi; Mariko Ogawa-Momohara; Takuya Takeichi; Yoshinao Muro; Masashi Akiyama (Oral Oncology Reports)