SECONDARY PATENTING OF ORGANIC COMPOUNDS SUITABLE FOR USE AS ACTIVE PHARMACEUTICAL SUBSTANCES ArticleGoizman M.S., Shimanovskii N.L., Zotova O.A., Ryzhkov I.O., Popova A.O., Chernobrovkin M.G., Korlyukov A.A., Suponitskii K.Y., Sinel'nikov A.V.Khimiko-Farmatsevticheskii Zhurnal. Vol. 53. 2019. P.. 57-64