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सर अलेक्जेंडर फ्लेमिंग एफआरएस FRSE FRCS स्कॉटलैंड के एक चिकित्सक था
Sir Alexander Fleming FRS FRSE FRCS was a Scottish physician, microbiologist, and pharmacologist. His best-known discoveries are the enzyme lysozyme in 1923 and the world's first antibiotic substance