Kang, Ran-Hui, Department of Endocrinology & Metabolism, Pyongyang University of Medical Sciences, Ryonhwa-dong, Central District, Pyongyang, Democratic People’s Republic of Korea. Kang, Un Sim, Hospital of Pyongyang University of Medical Sciences Kang, Yongjae, Gyongsong College of Medical technics, Gyongsong country, North Hamgyong province, Democratic People’s Republic of Korea. Kareem, Bashar Raouf , Department of Community, College of Medicine, University of Al-Qadisiyah Kareem, Rania I. Khadir, Hommam Mohammed Khalaf , Abbas H. Khalaf , Qasim H. Khalaf , Qassim H. Khaleel, Ali Nabeel, Department Medical Laboratories Techniques, Al-Toosi University College, Iraq Khalid , Qurat ul ain, Gujranwala Institute of Medial and Emerging Sciences Khamees, Mays Saleh Khudair, Ketam Kadum Khudair, Khadeeja Kareem , 2Al-Furat Al-Awsat Technical University, Babylon Technical Institute Khudhur Jameel, Sanaa Kim, Bok-Sun, Pyongyang Maternity Hospital, Pyongyang, Democratic People’s Republic of Korea. Kim, Chol-Bom , Department of Orthopaedics Surgery, Samjiyon City Hospital, Samjiyon, Democratic People’s Republic of Korea. Kim, Hak-Chol, Department of Orthodontics, Faculty of Dentistry, Pyongyang University of Medical Sciences, Democratic People’s Republic of Korea. Kim, Hye-Song, Department of Gastroenterology, Hospital of Pyongyang University of Medical Science, Democratic People’s Republic of Korea. Kim, Hye-Sung, Department of Gastroenterology, Pyongyang University of Medical Science, Democratic People’s Republic of Korea. Kim , Hyok , Pyongyang University of Medical Sciences Kim, Hyok, Department of Pediatrics, Faculty of Clinical Medicine, Pyongyang University of Medical Sciences, Democratic People’s Republic of Korea. Kim, Jin Hyok , Department of Periodontal Disease, Dental Hospital of South Province of Hwang Hae, Hae Ju City, Democratic People’s Republic of Korea. Kim, Jong Hui, Koryo Medicine General Hospital, Pyongyang, Democratic People’s Republic of Korea. Kim, Jong-Chol , Department of Dermatology, Hospital of Chongjin College of Medical Sciences, Chongjin, Democratic People’s Republic of Korea.