Home › Authors › John Nivison Force 👤 John Nivison Force b. 1877 – d. 1938 · 2 books Books by John Nivison Force Pathologic changes induced in Pathologic changes induced in the brains of susceptible and immune rabbits by intracerebral inoculation with vaccinia virus 1939 The immunological relationship The immunological relationship of alastrim and mild smallpox 1927