Iuvone, P. M., Bernard, M., Alonso-Gomez, A., Greve, P., Cassone, V. M., & Klein, D. C. (1969). Cellular and molecular regulation of serotonin N-acetyltransferase activity in chicken retinal photoreceptors. Biological Signals, 6(4-6), 217-24. https://doi.org/10.1159/000109131 (Original work published 1969)