Source:http://linkedlifedata.com/resource/umls/id/C0014406
MSH: The external elements and conditions which surround, influence, and affect the life and development of an organism or population.,CSP: sum of the conditions in an organism's surroundings, including physical and chemical factors and other organisms; does not apply to the organism's internal milieu.,OMS: Physical surroundings, conditions, or influences in the residence, neighborhood, and/or community.,NCI: The totality of surrounding conditions.