Cut Aryfa Andra, Anggia C. Lubis, Harris Hasan, A. Afif Siregar, Zulfikri Mukhtar, Refli Hasan, Nizam Z. Akbar, Zainal Safri, Andre P. Ketaren, Andika Sitepu, Ali Nafiah Nasution, Hilfan Ade P. Lubis, Abdul Halim Raynaldo, Yuke Sarastri, T. Bob Haykal, An. CARDIOVASCULAR DISEASE PROFILE IN NORTH SUMATERA, INDONESIA: CHARACTERISTICS AND CHALLENGES. IJRSM 2021, 8, 1-10.