1. Ahmad M, Tsang K, Mackenney PJ, Adedapo AO (2012) Tarsal tunnel syndrome: a literature review. Foot Ankle Surg 18(3):149–152
2. Al-Himdani S, Talbot C, Kurdy N, Pillai A (2013) Accessory muscles around the foot and ankle presenting as chronic undiagnosed pain. An illustrative case report and review of the literature. Foot (Edinb) 23(4):154–161
3. Barlow TE (1949) An unusual anomaly of m flexor digitorum longus. J Anat 83:224–226
4. Bartholin C (1633) Caspari Bartholini Philosophi & Medici Anatomicæ institutiones corporis humani vtriusque sexùs historiam & declarationem exhibentes cum plurimus novis observationibus & opinionibus, nec non illustriorum, quae in anthropologia occurrunt, controversiarum decisionibus Cum indice capitum & rerum locupletissimo., Excudebat Guilielmiis Turner, pp 281–282
5. Batista JP, Del Vecchio JJ, Golano P, Vega J (2015) Flexor digitorum accessorius longus: importance of posterior ankle endoscopy. Case Rep Orthop 2015:823107