Emil Elias Pins (1847 - 1913) was an Austrian physician. Pins sign (1889) of pericarditis and pericardial effusion similar to Ewart sign
Franz Zehetmayer (1813 - *1846) was an Austrian physician. Pericarditis, pericardial effusion and the genu-pectorale position
Edgard Hirtz (1849 - 1916) was German born, French trained physician. Hirtz Sign (1911) ore knee-chest position in pericardial effusion
Pierre Félix Merklen (1852 - 1906) was a French physician and cardiologist.