Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Ryuta Nagaoka and Aya Ebina and Kazuhisa Toda and Tomoo Jikuzono and Marie Saitou and Masaomi Sen and Hiroko Kazusaka and Mami Matsui and Keiko Yamada and Hiroki Mitani and Iwao Sugitani,Multifocality and Progression of Papillary Thyroid Microcarcinoma During Active Surveillance,World Journal of Surgery,0364-2313,Wiley,2021-06-07,45,9,2769-2776,https://cir.nii.ac.jp/crid/1360857593781016320,https://doi.org/10.1007/s00268-021-06185-2