1. Studies on serum copper. I. The copper content of blood serum in patients with psoriasis;Lipkin;J. Invest. Derm.,1962
2. Skin copper levels in psoriasis;Lipkin,1964
3. Copper metabolism;Scheinberg;Pharmacol. Rev.,1960
4. Koskelo, P., Kekki, M., Virkkunen, M., Lassus, A., Somer, T.: Serum ceruloplasmin concentration in rheumatoid arthritis, ankylosing spondylitis, psoriasis, and sarcoidosis. To be published
5. Spectrophotometry determination of serum copper with bicyclohexanoneoxalyldihydrazone;Peterson;Anal. Chem.,1955