Kim, Song-Hwan, Department of Gastroenterology, Pyongyang University of Medical Science, Democratic People’s Republic of Korea. Kim, Suk-Yong, Pyongyang University of Medical Science, Pyongyang, Democratic People’s Republic of Korea. Kim, Sung Jin, Koryo Medicine General Hospital, Pyongyang, Democratic People’s Republic of Korea. Kim, To Myong , Pyongyang University of Medical Sciences Kim, Ui Hun , Department of Dentistry, Gang Gon Sariwon College of Medical Science, Sariwon City, Democratic People’s Republic of Korea. Kim, Un Mi , Institute of Chiropractic and Developmental Disorders of Children, Pyongyang University of Medical Sciences, DPRK. Kim, Yong Ho, Department of Pathology, Pyongyang University of Medical Sciences, DPR Korea. Kim, Yongjun, Pyongyang University of Medical Sciences, Central District, Pyongyang, Democratic People’s Republic of Korea. Kim, Yun Gyong , Institute of Chiropractic and Developmental Disorders of Children, Pyongyang University of Medical Sciences, DPRK. Ko, Min-Hyok , Pyongyang University of Medical Sciences, Ryonhwa-dong, Central District, Pyongyang, Democratic People’s Republic of Korea. Kong, Yong–Ju , Department of Endocrinology & Metabolism, Pyongyang University of Medical Sciences, Ryonhwa-dong, Central District, Pyongyang, Democratic People’s Republic of Korea. Kreem, Khalid R. Kwon, Yong Baek, Pyongyang University of Medical Sciences Kwon, Yong Paek, Pyongyang University of Medical Sciences, Pyongyang, Democratic People’s Republic of Korea. Kye, Chun Yong, Department of Obstetrics, Pyongyang Maternity Hospital, Democratic People’s Republic of Korea. Kye, Chun-Yong, Pyongyang Maternity Hospital, Pyongyang, Democratic People’s Republic of Korea. Kzar, Hatem Kareem , Dept. of Dentistry, Hilla University College, Babylon, Iraq.