TY - SER AU - Gajda,Anna AU - Posyniak,Andrzej TI - Doxycycline depletion and residues in eggs after oral administration to laying hens N1 - YS2016 M01 Sources - Food Additives & Contaminants : Part A Sources - 32 (7) 2015 : 1116-1123 ISSN - 1944-0039 ER -