Purushothaman, S. ., Aviña, B. L., & Seifert, A. . <i>Sonic hedgehog</i> is Essential for Proximal-Distal Outgrowth of the Limb Bud in Salamanders. Frontiers in Cell and Developmental Biology, 10, 797352. https://doi.org/10.3389/fcell.2022.797352 (Original work published 2022)
