If we now introduce the diphtheria serum as an antitoxin into the blood by injecting it under the skin, this antitoxin will reach all parts of the body to which the blood has access. Emil von Behring
If we now introduce the diphtheria serum as an antitoxin into the blood by injecting it under the skin, this antitoxin will reach all parts of the body to which the blood has access.