User talk:Delchicago

Hypovitaminosis D
You substituted a new reference in this article for an old one. While I do not presently have an opinion as to which article is better, it is customary in Wikipedia to explain such changes. For minor changes, just put the explanation in the Edit summary. For more serious changes, which could include yours, it is generally best to propose the change on the article's talk page prior to actually making it. As it stands, other editors have no idea why you preferred one reference to the other. Cheers, Easchiff (talk) 08:21, 10 September 2009 (UTC)