1. β-endorphin and other 31 K fragments: pituitary and brain systems.;Akil,1978
2. Immunoreactive ACTH in cerebrospinal fluid;Allen;J. Clin. Endocr.,1974
3. Behavioral neurochemistry: Neuroregulators and behavioral states;Barchas;Science,1978
4. Three modes of communication in the nervous system.;Barker,1979
5. Three modes of intercellular neuronal communication.;Barker,1980