Your explanation made alot of sense. I wanted to let you know that Damon's bone age DID NOT advance WOOOHOOO!!!!!!! He's still very advanced but it's at a standstill since November! I want to thank you again for all your help at NIH and TCI. I appreciate that gallon of milk!!! And you and Brian keeping an eye on our children so we could have some time to ourselves :o) Love, Selena