1950 Platelet morphology & platelet counting techniques described.
1950 William J. Harrington infuses himself with plasma from a patient with idiopathic thrombocytopenic purpura (ITP) & develops acute thrombocytopenia & petechial bleeding.
1951 Bruton describes agammaglobulinaemia.
1952 Hufnagel reports 1st successful heart valve replacement.
1952 Zoll develops 1st cardiac pacemaker.
1952 Briggs & King 1st describe cell cloning in a frog egg.
1952 Martin & Synge: Nobel Prize in Chemistry for partition chromatography.
1953 1st live birth from frozen sperm.
1953 Edler adapts ultrasonography for medical diagnosis (echocardiography).
1953 Erslev outlines humoral regulation of red cell production by erythropoietin.
1953 Coulter patents method for counting particles suspended in a fluid & partners with his brother to begin commercial production of the popular blood cell counting device; the Coulter Counter.
1953 Watson & Crick describe structure of DNA molecule.
1953 Gibbon uses heart-lung machine successfully on a human.
