Although pulmonary medicine only began to evolve as a medical specialty in the 1950s.
One of the first major discoveries relevant to the field of pulmonology was the discovery of pulmonary circulation. Originally, it was thought that blood reaching the right side of the heart passed through small ‘pores’ in the septum into the left side to be oxygenated, as theorized by Galen; however, the discovery of pulmonary circulation disproves this theory.
Chiropractic is a form of alternative medicine that is concerned with the diagnosis and treatment of mechanical disorders of the musculoskeletal system, especially the spine.Chiropractors.