Patients and hospital staff interact in the Duke Hospital outpatient clinic waiting room. Between 1930 to 1940, approximately half a million visits were made to the outpatient clinic (referred to early on as the OPC). By the early 1950s, an...
A patient lies in an early tank respirator, often referred to as an "iron lung." Respirators were used primarily as treatment for polio. The first tank respirator, credited to Philip Drinker and Louis Shaw, was developed in 1929.