https://excellenttermpapers.com/wp-content/uploads/2020/07/logo-300x75.png00adminhttps://excellenttermpapers.com/wp-content/uploads/2020/07/logo-300x75.pngadmin2020-08-26 08:11:592020-08-26 08:11:59What research design should be used to determine the effectiveness of the new drug in comparison to the old one?