| Chew and Hersey, Am. J. Physiol. 242: G504 (1982). |
| Cocito, Micro. Rev. 43: 145 (1979). |
| Faris et al., Science 226: 1215 (1984). |
| Innis and Snyder, Proc. Natl. Acad. Sci. USA, 77: 6917 (1980). |
| Jensen et al., Proc. Natl. Acad. Sci. USA, 77: 2079 (1980). |
| Kingston et al., J. Chem. Soc., 19: 1669 (1966). |
| Matsen and Barry, Manual of Clinical Microbiology, Lennette, Spaulding, and Truant, Eds., American Society for Microbiology, Washington, DC, p. 418 (1974). |
| Mutt, Gastrointestinal Hormones, Glass, Ed., Raven Press, N.Y., p. 169 (1980). |
| Ohyama, Hokkaido, J. Med. Sci., 60: 206 (1985). |
| Praissman et al., J. Receptor Res., 3: 647 (1983). |
| Prang et al., Ann. Rep. Med. Chem., 17: 31 (1982). |
| Saito et al., J. Neurochem., 37: 483 (1981). |
| Smith, Eating and Its Disorders, Stunkard and Steller, Eds., Raven Press, N.Y., p. 67 (1984). |
| Walsh and Grossman, New Engl. J. Med., 292: 1324 (1975). |