Comment: It's probably better

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In reply to comment: How do you mean (see in situ)

It's probably better

if I give you a link to start your education since it's already written as well or better than I would type it here.

www.silverdoctors.com

Just read away and if you still need me to point you towards more, I will see you in a month after you've gotten it all from here. :-D