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Kwon, Ki Eon; Kim, Seon-Jeong; Kim, Joo Hak; Jung, Yoon Yang; Park, Noh Hyuck; Park, Ji Yeon; Kang, Kyung A; Baek, Soo Heui . (2017). Imaging sonographic findings of in a case of proliferating trichilemmal tumor of a finger: A case report. Journal of Clinical Ultrasound, (), –. doi:10.1002/jcu.22500 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research