  == Rewrote introduction ==  I came here to find out exactly what LDH was. I couldn't understand the introduction, so after I figured it out, I rewrote it to make it easier to understand.   Wikipedia is written for the average reader, not the specialist. I read NEJM and Lancet every week, and I couldn't understand it.   Please check the introduction for accuracy. But don't forget, the introduction in particular should be written for the non-technical reader.   