4B stands for 4Bone. It’s a free email service that brings you a weekly update of the latest clinical and review abstracts published in 4 prominent general orthopaedic journals: American Journal of Sports Medicine, Journal of Bone and Joint Surgery, Clinical Orthopaedics and Related Research, and Bone and Joint Journal.
Weekly topics include Upper Extremity, Lower Extremity, Trauma, and Miscellaneous.
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Website: http://4b.4abstracts.nl