THE CONDITION OF C-FOS GENE IN THE NEUROSECRETORY NUCLEI OF THE HYPOTHALAMUS IN RATS STRESSED BY LIGHT AND THE EFFECTS OF MELATONIN AND EPITHALON Journal title: Праці Наукового товариства ім. Шевченка Authors: R.Ye. Bulyk, A.I. Burachyk, K.V. Vlasova, V.R. Yosypenko Subject(s):