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Attia YA, Burke WH, Yamani KA, Jensen LS.Attia YA, et al.Poult Sci. 1995 Feb;74(2):247-60. doi: 10.3382/ps.0740247.Poult Sci. 1995.PMID: 7724448Free article.
Attia YA, Burke WH, Yamani KA, Jensen LS.Attia YA, et al.Poult Sci. 1995 Feb;74(2):261-70. doi: 10.3382/ps.0740261.Poult Sci. 1995.PMID: 7724449Free article.