RT Journal Article SR Electronic T1 Amino Acid Elements of Normal Human Aqueous Fluid Protein JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 503 OP 506 DO 10.1136/bjo.39.8.503 VO 39 IS 8 A1 Keup, Wolfram A1 Steiger, Rainer YR 1955 UL http://bjo.bmj.com/content/39/8/503.abstract AB