@article {atef1999elimination,
	title = {Elimination of tilmicosin in lactating ewes.},
	journal = {DTW. Deutsche tierarztliche Wochenschrift},
	volume = {106},
	number = {7},
	year = {1999},
	note = {n/a},
	pages = {291{\textendash}294},
	abstract = {n/a},
	author = {Atef, M. and Abo, el-Sooud K and Nahed, E and Tawfik, M}
}
