Background Anterior cruciate ligament (ACL) injury in knees opposite to the racket-hand side frequent occurs during single-leg landing after overhead stroke in badminton. Although large lateral ...
What shape is a tree? For most people, it’s like a lollipop or a feather duster: a single trunk topped by a green bunch of branches and leaves. “Not all trees are like that,” said Sharon Yiesla, plant ...
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