TY  - GEN
AU  - Riis,P
TI  - [Keeping abreast with medical knowledge--a Sisyphus labor]
SN  - 0029-1420
PY  - 1991///0425
KW  - Education, Medical, Continuing
KW  - Periodicals as Topic
KW  - Professional Competence
N1  - Publication Type: Editorial
ER  -