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
이 실험법은 새로운 약물의 효과를 테스트하는 데 사용됩니다.i silheombeop-eun saeroun yagmul-ui hyogwa-reul teseuteu-haneun de sayongdoemnida.This experiment method is used to test the effects of a new drug.