Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
병원에서 멸균제를 사용하여 기구를 소독합니다.byeongwoneseo myeolgyunjeul sayonghayeo gigu-reul sodokhamnida.In the hospital, a sterilant is used to disinfect the instruments.