When I want to find online courses for biology. I found the Wellcome Connecting Science providing free online courses on the learning platform called FutureLearn .  Unfortunately those courses are not always available, and there are no available courses for now. But I was able to find some courses in Healthcare & medicine courses . I am fine for the paid courses too.
Other online course that looks good to learn how to write science papers is this one  on the platform, Coursera . Coursera also has many health, biology, medicine courses.
-  https://www.futurelearn.com/
-  Online Courses from Advanced Courses and Scientific Conferences – Wellcome Connecting Science courses and conferences
-  https://coursesandconferences.wellcomeconnectingscience.org/news/online-courses/
-  https://www.futurelearn.com/subjects/healthcare-medicine-courses
-  https://www.coursera.org/learn/sciwrite
-  https://www.coursera.org/