Defeat Diphtheria
Defeat Diphtheria
Defeat Diphtheria цео филм ceo film online. This film explains with some simple diagrams the nature of diphtheria, tells how the anti-toxin was discovered and shows parents the part they must play in protecting their children.
- Жанр:
- Држава:
- директор: Bladon Peake
- Глумци: John Hilton,
