@misc{indiciaef8e1517f0802, title = {Sleep-promoting factor S: purification and properties.}, author = {J M Krueger and J R Pappenheimer and M L Karnovsky}, year = {1978}, doi = {10.1073/pnas.75.10.5235}, url = {https://pubmed.ncbi.nlm.nih.gov/283429/}, note = {Source identifier: 283429} }