Hernandez, G Castration reduces the nocturnal rise of pineal melatonin levels in the male rat by impairing its noradrenergic input. [electronic resource] - Journal of neuroendocrinology Dec 1990 - 777-82 p. digital Publication Type: Journal Article ISSN: 0953-8194 Standard No.: 10.1111/j.1365-2826.1990.tb00640.x doi