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Open-Access Journal
Opinion Review
Francisco Javier Pérez Lara, Maria Belen Jimenez Martinez, Francisco Pozo Muñoz, Andres Fontalba Navas, Rogelio Garcia Cisneros, Maria Jose Garcia Larrosa, Ignacio Garcia Delgado, Maria del Mar Callejon Gil 
World J Clin Cases 9(23):6582-6590. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6582
Review
Mostafa Alfishawy, Nso Nso, Mahmoud Nassar, Jonathan Ariyaratnam, Sakil Bhuiyan, Raheel S Siddiqui, Matthew Li, Howard Chung, Amira Al Balakosy, Ahmed Alqassieh, Tibor Fülöp, Vincent Rizzo, Ahmed Daoud, Karim M Soliman 
World J Clin Cases 9(23):6608-6623. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6608
Cheng-Lei Zhang, Jing-Jiao Wang, Jian-Ning Li, Yi Yang 
World J Clin Cases 9(23):6624-6638. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6624
Minireviews
Ioulia Markaki, Afroditi Konsoula, Lamprini Markaki, Nikolaos Spernovasilis, Marios Papadakis 
World J Clin Cases 9(23):6674-6685. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6674
Case Control Study
Lorena Elena Meliț, Cristina Oana Mărginean, Maria Oana Săsăran, Simona Mocan, Dana Valentina Ghiga, Alina Bogliş, Carmen Duicu 
World J Clin Cases 9(23):6686-6697. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6686
Retrospective Study
Systematic Reviews
Gaetano Gallo, Monica Ortenzi, Ugo Grossi, Gian Luca Di Tanna, Francesco Pata, Mario Guerrieri, Giuseppe Sammarco, Salomone Di Saverio 
World J Clin Cases 9(23):6759-6767. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6759
Case Report
Sofia Bezerra, Nuno J França, Firmo Mineiro, Germano Capela, Cristina Duarte, António Ribeiro Mendes 
World J Clin Cases 9(23):6768-6774. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6768
Na Xi, Xiao Song, Xue-Yan Wang, Sheng-Fang Qin, Guan-Nan He, Ling-Ling Sun, Xi-Min Chen 
World J Clin Cases 9(23):6789-6797. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6789
Junloong Chiew, Sekkapan Thannimalai Sambanthan, Hans Alexander Mahendran 
World J Clin Cases 9(23):6804-6809. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6804
Ying Zhang, Wen-Bin Guan, Rui-Fen Wang, Wen-Wei Yu, Rui-Qi Jiang, Yi Liu, Li-Feng Wang, Jia Wang 
World J Clin Cases 9(23):6816-6823. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6816
Daniela Barros, Cecília Alvares, Teresa Alencar, Priscila Baqueiro, Augusto Marianno, Rafael Alves, Juliana Lenzi, Laura Ferreira Rezende, Patricia Lordelo 
World J Clin Cases 9(23):6839-6845. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6839
Daisuke Usuda, Toshihide Izumida, Nao Terada, Ryusho Sangen, Toshihiro Higashikawa, Sayumi Sekiguchi, Risa Tanaka, Makoto Suzuki, Yuta Hotchi, Shintaro Shimozawa, Shungo Tokunaga, Ippei Osugi, Risa Katou, Sakurako Ito, Suguru Asako, Yoshie Takagi, Kentaro Mishima, Akihiko Kondo, Keiko Mizuno, Hiroki Takami, Takayuki Komatsu, Jiro Oba, Tomohisa Nomura, Manabu Sugita, Yuji Kasamaki 
World J Clin Cases 9(23):6886-6899. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6886
Tadashi Nishimura, Tomohito Okano, Masahiro Naito, Chikashi Tsuji, Soichi Iwanaka, Yasumasa Sakakura, Taro Yasuma, Hajime Fujimoto, Corina N D'Alessandro-Gabazza, Yasuhiro Oomoto, Tetsu Kobayashi, Esteban C Gabazza, Hidenori Ibata 
World J Clin Cases 9(23):6922-6928. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6922
Hou-Hong Wang, Can-Can Zhao, Xiao-Lei Wang, Ze-Nong Cheng, Zong-Yu Xie 
World J Clin Cases 9(23):6943-6949. Published online Aug 16, 2021. doi: 10.12998/wjcc.v9.i23.6943