Sumarlie, H., Hamid, F., Santoso, A., As’ad, S., Bukhari, A. and Zainuddin, A.A. 2022. 8- Hydroxy -deoxyguanosine (8-OHdG) urine as a biomarker of oxidative damage in early elderly hypertension. International journal of health sciences. 6, S6 (Jun. 2022), 2996–3004. DOI:https://doi.org/10.53730/ijhs.v6nS6.9982.