Dr. Albert Szent-gyorgyi Busy At Work
Bettmann
Hand Holding Vial Of Vaccine
Bettmann
Studio Shot Of Syringe And Vial
Tetra Images
Sabin With Oral Vaccine Holding Vial
Bettmann
Eric Von Stroheim In The 1936 Motion
Bettmann
Marie Curie And President Warren G
Bettmann
Jonas Salk In His Laboratory
Bettmann
Worker Testing Penicillin Cultures
Bettmann
Old Pharmacys Glassware
Sergey Ryumin
Hand Holding Ampoule Of Penicillin
Bettmann
Blood Sample And Cotton Balls In Bowl #1
Cultura Science/Rafe Swan
Beakers With Liquids On Reflective Table
Cultura Science/Rafe Swan
Pipette Dropping Liquid In Clear Jars #1
Cultura Science/Rafe Swan
Cotton Balls And Syringe In Kidney Bowl
Cultura Science/Rafe Swan
Blood Sample And Cotton Balls In Bowl
Cultura Science/Rafe Swan
Pipette Dropping Liquid In Clear Jars #2
Cultura Science/Rafe Swan
Cotton Balls And Syringe In Kidney Bowl #1
Cultura Science/Rafe Swan