On december 23, 2021, at 14.00, a meeting will be held at the Scientific Council of the Tashkent Medical Academy Dsc.04 / 12.30.2020.Tib.30.03 on the defense of the dissertation of the basic doctoral student of the Scientific Research Institute of Sanitation, Hygiene and Occupational Diseases of the Ministry of Health of the Republic of Uzbekistan, Sabirova Gulchekhra Asadovna on the topic: “Improvement of methods of prevention of toxic hepatitis from the complex effects of chemical and physical factors”, presented for the degree of Doctor of Philosophy (PhD) in medical sciences, specialty 14.00.07 – Hygiene.