Hepner, Felix Mass spectrometrical analysis of recombinant human growth hormone (Genotropin(R)) reveals amino acid substitutions in 2% of the expressed protein. [electronic resource] - Proteome science Feb 2005 - 1 p. digital Publication Type: Journal Article ISSN: 1477-5956 Standard No.: 10.1186/1477-5956-3-1 doi