E' ampiamente dimostrata una ereditarietà crociata tra adenocarcinoma del colon e adenocarcinoma al seno per cui si suggerisce sempre un controllo di ambedue gli organi con le dovute metodiche

A cross inheritance between colon adenocarcinoma and breast adenocarcinoma has been widely demonstrated, therefore it is always recommended to check both organs with the necessary methods.

ideally, controls should be cases of another gynecological cancer to control for different types of selection and information bias

I am looking at bad air quality as a possible carcinogen in the heavily industrialized city. So taking any cancer as control seems very counterintuitive.