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Case Control Study
Retrospective Study
Observational Study
Prospective Study
Mitsuru Sugimoto, Tadayuki Takagi, Rei Suzuki, Naoki Konno, Hiroyuki Asama, Yuki Sato, Hiroki Irie, Ko Watanabe, Jun Nakamura, Hitomi Kikuchi, Mika Takasumi, Minami Hashimoto, Tsunetaka Kato, Takuto Hikichi, Kenji Notohara, Hiromasa Ohira 
World J Clin Cases 8(1):88-96. Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.88
Case Report
Emanuela Cimpeanu, Jibran Ahmed, Wahib Zafar, Adreana DeMarinis, Svetoslav S Bardarov, Shamim Salman, Dennis Bloomfield 
World J Clin Cases 8(1):97-102. Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.97
Juan Carlos Cuevas-González, Jesús Oscar Reyes-Escalera, José Luis González, Celeste Sánchez-Romero, León Francisco Espinosa-Cristóbal, Simón Yobanny Reyes-López, Karla Lizette Tovar Carrillo, Alejandro Donohue Cornejo 
World J Clin Cases 8(1):126-132. Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.126
Alejandro Donohue-Cornejo, Oslei Paes de Almeida, Celeste Sánchez-Romero, León Francisco Espinosa-Cristóbal, Simón Yobanny Reyes-López, Juan Carlos Cuevas-González 
World J Clin Cases 8(1):133-139. Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.133
Jia-Bin Cai, Jin-Hu Wang, Min He, Fa-Liang Wang, Jie-Ni Xiong, Jun-Qing Mao, Min-Ju Li, Kun Zhu, Jia-Wei Liang 
World J Clin Cases 8(1):194-199. Published online Jan 6, 2020. doi: 10.12998/wjcc.v8.i1.194
Letter To The Editor