umls-concept:C0596138 | skos:definition | CSP: one of three fundamental types (with paracrine and endocrine) of cellular regulation by intercellular diffusible factors, where the diffusible factor exerts a regulatory influence primarily on the same cell that secreted it.,NCI: Organ systems involved in self-stimulation through cellular production of a factor and a specific receptor for it. | lld:umls |