O Niewiadomski is currently working as an eminent faculty member at Department of Gastroenterology and Hepatology, Royal Melbourne Hospital in Australia. He has published numerous research papers and articles in reputed journals and has various other achievements in the related studies. He has extended his valuable service towards the scientific community with his extensive research work.

Haemochromatosis, Liver diseases, Venesection therapy, Liver biopsy and Liver cirrhosis