== Examples == 

 In the examples section, it states that a certain penem is similar to a carbapenem, but it's a penem. If it's not a carbapenem, and just a penem, why is it there? It's not unrelated to the article, but this article is not titled "Carbapenems and similar substances", and neither is the section named "Examples of carbapenems and a few other things we've decided to throw in just for shits and giggles". Remove Penem example? D mrout