> willingly modified their CA store In the same way a patient might willingly consent to some highly specific chemical treatment being replaced with another hi

> willingly modified their CA store In the same way a patient might willingly consent to some highly specific chemical treatment being replaced with another highly specific chemical - they have no idea, they rely on the doctor not to purposefully mislead them. You could put anything in those forms and most people would trust the professional is at least not allowed to defraud them.