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Roy, Joyeeta, Brandon M. Henry, Przemysław A. Pękala, Jens Vikse, Piravin Kumar Ramakrishnan, Jerzy A. Walocha, and Krzysztof A. Tomaszewski. "The Prevalence and Anatomical Characteristics of the Accessory Head of the Flexor Pollicis Longus Muscle: A Meta-analysis." PeerJ 2015.

Roy, Joyeeta, et al. "The Prevalence and Anatomical Characteristics of the Accessory Head of the Flexor Pollicis Longus Muscle: A Meta-analysis." PeerJ 2015.