by Innis, S.M, Friesen, R.W
Published in Alternative medicine review (01.06.2008)

by Lavoie, J.P, Pasloske, K, Joubert, P, Cordeau, M.E, Mancini, J, Girard, Y, Friesen, R.W, Frenette, R, Blouin, M, Young, R.N
Published in Journal of veterinary internal medicine (2006)

by Friesen, Richard W., Bissada, Suzanne
Published in Tetrahedron letters (01.08.1994)