by Wolfenden, R.E, Layton, S.L, Wolfenden, A.D, Khatiwara, A, Gaona-Ramírez, G, Pumford, N.R, Cole, K, Kwon, Y.M, Tellez, G, Bergman, L.R, Hargis, B.M
Published in Poultry science (01.11.2010)

by Bergman, L.R., Wångby, M.
Published in Scandinavian Journal of Social Welfare (01.07.1998)

by Bergman, L. R.
Published in Human development (01.01.1972)