http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Effect of equi-molar dietary betaine and choline addition on performance, carcass quality and physiological parameters of pigs
H. Siljander-Rasi, S. Peuranen, K. Tiihonen, E. Virtanen, H. Kettunen, T. Alaviuhkola, P. H. Simmins.