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Adieu 2021 (Dec. 31, 2021).

Year-end dinner (Dec. 29, 2021).

Happy birthday to Gao (Nov. 07, 2021).

Dr. Jin-Yoo Suh visited us (Nov. 04, 2021).

Celebrating boss' birthday (July 19, 2021).

Celebrating teacher's day (May 14, 2021).

Prof. Jang and Dr. Li visited Prof. Heung Nam Han’s group at SNU (April 20, 2021).

Spring comes everywhere (April 3, 2021).

Spring comes at campus (April 1, 2021).

Happy birthday to A-Hyun (Mar. 11, 2021).

A-Hyun earned the Bachelor degree (Feb. 25, 2021).

Our group alumnus Prof. Lee (a.k.a. DH) visited us (Jan. 20, 2021).

A snowy day II (Jan. 12, 2021).

A snowy day I (Jan. 12, 2021).

On the first working day of 2021 (Jan. 4, 2021).

Welcome 2021! Photo by Dr. Byung-Gil Yoo (Jan. 1, 2021).