Medical milestones, landmark publications, and notable births and deaths associated with July 21.
Events
No major medical milestones added for this date yet — this page is being expanded
Births
1949 – Antonio Palla, Italian respiratory and nuclear medicine specialist; described Palla sign (1983) of pulmonary embolism
Deaths
1983 – Norman Jefferis ‘Jeff’ Holter (1914-1983), American chemist, physicist and biophysicist; inventor of the Holter monitor (1947)
Further reading
BA MA (Oxon) MBChB (Edin) FACEM FFSEM. Emergency physician, Sir Charles Gairdner Hospital. Passion for rugby; medical history; medical education; and asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | On Call: Principles and Protocol 4e| Eponyms | Books |