TY CONF TI EVALUATION OF PARATHYROID HORMONE IN MIXED SALIVA IN PATIENTS WITH SYSTEMIC ENAMEL HYPOPLASIA KW system enamel hypoplasia KW parathyroid hormone KW mixed saliva. JO International Congress "dentistry of The great Urals" November 29-December 1, 2017 Youth scientific school on fundamental dentistry AU Ozhgihina, N.V. AU Ozhgikhina, J.E. PY 2024 PB TIRAZH Publishing House