Duroziez-type murmur observed with the patients arm subjected to various temperatures of water and by applying a subdiastolic pressure below the auscultation site, to help differentiate between aortic insufficiency and peripheral vasodilatation.
Herrman Ludwig Blumgart (1895-1977) was an American physician, cardiologist and pioneer of diagnostic nuclear medicine. Blumgart-Ernstene murmur (1933)
Sir Thomas Watson (1792 - 1882) was an English physician. Remembered for his description of the palpable pulse of aortic regurgitation as likened to a Victorian toy, the water-hammer pulse in 1837