[Determination of selenium content in the blood of milking cows from Lower Silesia].
D000818:Animals; D002417:Cattle / Q000097:blood*; D005260:Female; D011044:Poland; D012621:Seasons; D012643:Selenium / Q000097:blood*
D012643:Selenium
Oznaczanie zawartości selenu we krwi bydła mlecznego z terenów Dolnego Slaska