title: Seasonal changes in the sheep pineal--the preparation and testing of tissue fractions.
mesh_terms: D000818:Animals; D002850:Chromatography, Gel / Q000379:methods*; D004971:Estrus; D005260:Female; D010870:Pineal Gland / Q000032:analysis* / Q000502:physiology; D011247:Pregnancy; D012621:Seasons; D012756:Sheep