A Seoul court on Thursday rejected a request by doctors and medical students to stop a government plan to increase medical school quotas, as a monthslong strike by junior medics drags on.

Thousands of medics stopped working on Feb. 20 to protest government plans to train more doctors, causing chaos in hospitals, and forcing cancellations of key treatments including chemo.

Citing shortages and a rapidly aging population, the government is seeking to train hundreds more doctors each year, prompting backlash from junior medics and students, who have taken the case to court to try and block the change.