Overexpression of Lactate Dehydrogenase in the Saliva and Tissues of Patients with Head and Neck Squamous Cell Carcinoma Farnaz Mohajertehran1, Hossein Ayatollahi3, Amir Hossein Jafarian4, Kamran Khazaeni5, Mohammad Soukhtanloo6, — Reports of Biochemistry & Molecular Biology — RBMB