Shirama, K Effects of lighting conditions and of hormone replacement on the level of porphyrins in the rat Harderian gland. [electronic resource] - Journal of endocrinological investigation Feb 1987 - 79-82 p. digital Publication Type: Journal Article ISSN: 0391-4097 Standard No.: 10.1007/BF03347160 doi Subjects--Topical Terms: AnimalsHarderian Gland--metabolismLacrimal Apparatus--metabolismLightingOrchiectomyOvariectomyPorphyrins--metabolismRats