摘要 |
(For the Contracting States : BE, CH, DE, FR, GB, IT, LI, LU, NL, SE) 1. Human leukocyte interferon (IFN-alpha in crystalline form. (For the Contracting State AT) 1. A process for the manufacture of human leukocyte interferon in crystalline form, characterized by treating an aqueous solution of the interferon at a concentration of at least about 0.2 mg/ml with polyethylene glycol (PEG). |