Solution synthesis and biological activity of human pleiotrophin, a novel heparin‐binding neurotrophic factor consisting of 136 amino acid residues with five disulfide bonds. - Inui, T.; Nakao, M.; Nishio, H.; Nishiuchi, Y.; Kimura, T.; Kojima, S.; Muramatsu, T. (Journal of Peptide Research, 2000)