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It desires and expert to do that.
first the type of cancer is to be confirmed , followed by the etiology of the hard to please type and if at hand are any subtypes and to what subtype it belongs to.
This adjectives process have to be see from the etiological point of estimation and to compare next to the environmental factor that your daughter have be exposed to. I later within is any co-relation, that correlation have to to be investigated. Or if nearby is a infallible factor predominantly present in the environment that you daughter have be exposed to, it desires further evaluation. If this is a chemical next its effect on animals can be studied ( save already known).
So my friend you see it is a boring process to be carried out by an expert within this grazing land...epidemiologist and others.
This is out of my grazing land completely so i will make a contribution you my guess... you hold to look at different molecules from stimuli and when you find a molecule that have impossible to tell apart property as that attached to cancer... explicitly what cause it. I'm using logic here... i'm not a Dr.