I think it is ridiculous that in medical school, students complain about things like other students presenting articles.
Sure, bringing in articles may annoy the other students on your team, if the other students on your team are the type that are insecure about being one-upped.
Although, you should attempt some tact when bringing in an article.
For one, you should actually have looked it up out of interest in a particular unaswered question, not just looking up an article on X disease that your patient has. That is just blatent ass-kissing, so blatent that attendings will see right through it.
I prefer to just talk about what I read about in my assesment and plan. I give a very brief version of an article, such as "a randomized double-blinded study from NEJM of X number of patients showed that in fact it is common for patients with X disease to present in this atypical manner." If someone asks, I usally have a couple copies of the article on hand.
Of course, I'm talking about medicine rotation. If you are on surgery, you will annoy everyone by sucking up time with a prolonged presentation.
The bottom line is, in our evaluations for our clinical rotations, there are boxes that attendings have to circle that asses how much you read around your patients. i.e "student never/rarely/sometimes/often/always reads around his or her patients" or "student contributes to the learning of the team" So even if you read up on every one of your patients, if you don't show what it is that you've read-up on, you'll get a worse eval than you deserve. Presenting articles is a good way to make sure your work is being recognized, besides the obvious facts that you can teach your team something and better assess your patient's problems.
And if you have a low-quality team, and you end up annoying your residents or other students, I wouldn't worry about it, because they don't grade you and reading around your patients is a good way to learn.