Roy, J., Henry, B. M., Pękala, P. A., Vikse, J., Ramakrishnan, P. K., Walocha, J. A., & Tomaszewski, K. A. (2015). The prevalence and anatomical characteristics of the accessory head of the flexor pollicis longus muscle: A meta-analysis. PeerJ.

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