Biochemistry Which of the following is not true regarding wilson’s disease A ATP7B mutation leading to impairment in copper metabolism B Most specific screening test is Urinary excretion of copper C Gold standard test is liver biopsy D KF ring is present in upto 30% cases 💡 Explanation Which of the following is not true regarding wilson's disease ✓ Correct Answer: D. KF ring is present in upto 30% cases