who discovered antibiotics?
alexendra fleming
1928 in scotland
who discovered antiseptics
joseph lister
1869(scotland)
who discovered blood circulation
william harvey
1628(britain)
who discovered blood transfusion
jean-baptiste denys
1625(france)
who discovered cholera and tb germs
robert kock
1883(germany)
who invented electrocardiogram
william einthoven
who invented ct scan
godfrey hounsfield
1973(england)
who invented sphygmomanometer
scipione riva-rocci
1898(italy)
who invented stethoscope
rene laennee
1819(france)
who invented thermometer
sir thomas aelburt
1867(england)
who invented ultrasound
ian donald
1950(IRELAND)
who invented x-ray
wc roentgen
1865(GERMANY)
who invented electroencephalogram
hans berger
1929(GERMANY)