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Synthetic antigens was discovered in which year?
Terramycin was discovered in which year?
Typhus Vaccine was discovered in which year?
Use of artificial heart (for surgery) was discovered in which year?
Vaccination was discovered in which year?
Virology was discovered in which year?
Vitamins was discovered in which year?
Who discovered Anti-toxin (Science of immunity)?
Who discovered Artificial Heart?
Who discovered Aspirin?