Die menslike immuunstelsel bestaan ​​uit verskillende selle, insluitend T -selle en B -selle, wat saamwerk om infeksies en siektes te beveg.
© Chloroformzt Official - Est 2009
10 Interessante Feit About The human immune system and how it works

10 Interessante Feit About The human immune system and how it works