615530 SejarahDr. Ralph Scobey, march of dimes, rockefeller institute, Simon Flexner, Teori Kuman, virologiMenata Pengobatan Modern (*Bagian 2)
519522 Sejarahbakteri pneumonia, fort riley, rockefeller institute, Spanish Flu, vaksin meningitisMengungkap Kebenaran Pandemi
