Leone, A M Melatonin concentrations in pineal organ culture are suppressed by sera from tumor-bearing mice. [electronic resource] - Journal of pineal research Aug 1994 - 17-9 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0742-3098 Standard No.: 10.1111/j.1600-079x.1994.tb00108.x doi Subjects--Topical Terms: AnimalsBiological Factors--pharmacologyLeukemia, Experimental--bloodMaleMelatonin--antagonists & inhibitorsMiceOrgan Culture TechniquesPineal Gland--drug effectsRadioimmunoassayRatsRats, WistarTumor Cells, Cultured