In the decades since 1950, endoscopy has developed into a safe and frequently used group of procedures to examine body structures and organs. By the middle of the 19th century, most of the concepts and apparatuses were in place, developed from clinical work since ancient times in such areas as the ear and urethra. Later in the century, entry began into the stomach. The decades until the mid-20th century were filled with efforts to improve tubing, illumination and real visualization.
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