From Clinical Cases and Images - Blog:"Twitter may be useful as a daily/weekly reminder to patients with chronic conditions. For example, an allergist can remind his patients with allergic rhinitis of the high pollen counts in late June. Or a cardiologist can text his patients about the findings of a new study. It only takes a doctor's cell phone and patients willing to subscribe to his/her Twitter feed."
This CommonCraft video explains what a microblogging platform is by using Twitter as an example.
References:
A Doctor's Opinion: Why I Started Microblogging on Twitter