How long does it usually take for published articles to show up on Google Scholar?
My article showed up in a few days. Since google is crawling, I believe (although I am not certain), that updating other sources such as policy, government, medical repositories and other resource hubs that allow you to update fields, add links etc, without needing to upload the article, increases the external links with the article page. This might not be necessary to expedite the process, but if the article is not showing up within the normal period of time (which could be a week), I believe this would be a good step to take. This advice also applies for anything else such as websites and blogs. Actually my repository link showed up in google before the actual journal page did!