Selenium levels, selenoenzyme activities and oxidant/antioxidant parameters in H1N1-infected children - Pınar Erkekoğlu; Ali Aşçı; Mehmet Ceyhan; Murat Kızılgün; Ulrich Schweizer; Can Ataş; Ateş Kara; Belma Koçer Giray (The Turkish Journal of Pediatrics)