TY  - RPRT
TI  - [Developing a problem-solving list of classification headings for cardiology].
AU  - L S Novikova
AU  - O M Eliseev
AU  - L S Afanas'eva
AU  - A A Zhukova
PY  - 1983
UR  - https://pubmed.ncbi.nlm.nih.gov/6639763/
ID  - 6639763
ER  -