Visokomolekularne supstancije, najčešće proteini, koje, unesene parenteralnim putem u organizam, podstiču stvaranje specifičnih dijela (antitijela), koja osobeno reaguju (precipitacija, algutinacija, liza i dr.).
I am not offering you SEO, neither PPC.
It's something completely different.
Just send me keywords of your interest and I'll give you traffic guarantees on each of them.
Let me demonstrate how it works and you will be surprised by the results.