Kosherbaeva L., Alekenova N., Ibraeva G., Bizhanova Zh., Sultanbekova B., and Nazarbayeva R. 2016. “LOSING YEARS OF LIFE IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN AKTOBE REGION IN 2014”. World Science 2 (4(8), 63-64. https://rsglobal.pl/index.php/ws/article/view/1142.