Source:http://linkedlifedata.com/resource/umls/id/C0031516
CSP: substance secreted to the outside of the body by an individual and perceived (as by smell) by a second individual of the same species, prompting a specific behavioral reaction in the perceiver.,MSH: Chemical substances, excreted by an organism into the environment, that elicit behavioral or physiological responses from other organisms of the same species. Perception of these chemical signals may be olfactory or by contact.