1. Microbial transformation of steroids;Charney,1967
2. Microbial transformation of bioactive compounds;Iida,1986
3. Microbial transformation of sterols;Nagasawa,1970
4. Microbiological production of 20-carboxy-pregna-1,4-dien-3-one from β-sitosterol with high yield by a Rhodococcus species;Iida;J. Ferment. Technol.,1985
5. Production of 20-carboxy-pregna-1,4-dien-3-one from sterols by mutant of Rhodococcus sp.;Iida;J. Ferment. Technol.,1987