== Reverting Changes == 

 Actually, It's pretty easy. I've already fixed it for you, but, if I had not, this is what to do: 

 * Go to Porphyric hemophilia. 
 * You should be redirected to Porphyria. A little grey link will appear at the top left of the page saying "(Redirected from..." 
 * Click that link. 
 * WP:REVERT to an earlier version of the page in question.  

 Hope that helps. Regards,