Kuroiwa Y, Kasinathan P, Choi YJ, Naeem R, Tomizuka K, Sullivan EJ, Knott JG, Duteau A, Goldsby RA, Osborne BA, Ishida I, Robl JM. Cloned transchromosomic calves producing human immunoglobulin. Nat Biotechnol. 2002 Sep; 20(9):889-94.