"Documented clinical evidence" is one of the catch phrases that mainstream trolls use here. Only the trillion dollar mainstream drug industry with their unholy patented and side-effect laden products that merely manage symptoms can afford the millions it takes for all the clinical studies that prove how safe and effective their products are. You know, like Merck did with Vioxx.
How about YOU show documented clinical evidence of kidney damage from properly made colloidal silver?
And, since you just joined CureZone and this is only your second post, I will point out to you that this entire website was created by it's owner to provide alternatives to mainstream medicines and treatments. If all you can do is advise posters to turn to what they have already rejected, and you cannot provide your own evidence of what YOU say, beat it!