For about two centuries, the hospitals of Paris have had an internship program. Every year, 20 to 50 interns were recruited following a difficult competitive examination. Their duties covered both the production and the distribution of medicines, and biological testing. During the 20th century, biological testing meet the exigencies of clinical medicine and it evolved interns participated, under the guidance of the hospital pharmacists.
History, 20th Century Internship, Nonmedical