5799700

Courtesy of Dr F. Wang

6905651

Courtesy of Dr L. Meng

5553596

Courtesy of Dr F. Wang

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Courtesy of Dr F. Escobar

7324019

Courtesy of Dr K. Malekian

 

6678374

Courtesy of Dr X. Wang

10205848

Courtesy of Dr H. Toros Bingol

6077122

Courtesy of Dr W. Chi Chiu