I'm sorry for any confusion, but "Chicago" is a specific location and a major city in the United States, not a medical term or condition with a defined meaning within the medical field. Therefore, it doesn't have a medical definition in a singular sentence or otherwise. If you have any questions related to healthcare, medicine, or medical terminology, I would be happy to help answer those!

I'm sorry for any confusion, but "Illinois" is a state in the United States and not a term that has a medical definition.

Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.

Persons living in the United States having origins in any of the black groups of Africa.

Disorders affecting the motor function of the UPPER ESOPHAGEAL SPHINCTER; LOWER ESOPHAGEAL SPHINCTER; the ESOPHAGUS body, or a combination of these parts. The failure of the sphincters to maintain a tonic pressure may result in gastric reflux of food and acid into the esophagus (GASTROESOPHAGEAL REFLUX). Other disorders include hypermotility (spastic disorders) and markedly increased amplitude in contraction (nutcracker esophagus).

The study of ENVIRONMENTAL POLLUTION and the toxic effects of ENVIRONMENTAL POLLUTANTS on the ECOSYSTEM. The term was coined by Truhaut in 1969.

Industrial chemicals which have become widespread environmental pollutants. Each aroclor is a mixture of chlorinated biphenyls (1200 series) or chlorinated terphenyls (5400 series) or a combination of both (4400 series).

The Christian faith, practice, or system of the Catholic Church, specifically the Roman Catholic, the Christian church that is characterized by a hierarchic structure of bishops and priests in which doctrinal and disciplinary authority are dependent upon apostolic succession, with the pope as head of the episcopal college. (From Webster, 3d ed; American Heritage Dictionary, 2d college ed)

A microcomputer-based software package providing a user-friendly interface to the MEDLARS system of the National Library of Medicine.

The inhabitants of a city or town, including metropolitan areas and suburban areas.