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Roy, Joyeeta, Brandon M. Henry, Przemysław A. Pękala, Jens Vikse, Piravin Kumar Ramakrishnan, Jerzy A. Walocha, a 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.