Huggins, P., Johnson, C., Schoergendorfer, A., Putta, S., Bathke, A., Stromberg, A., & . (2012). Identification of differentially expressed thyroid hormone responsive genes from the brain of the Mexican Axolotl (Ambystoma mexicanum). Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP, 155(1), 128-35. https://doi.org/10.1016/j.cbpc.2011.03.006

Johnson, C., & . Salamander paedomorphosis: linking thyroid hormone to life history and life cycle evolution. Current Topics in Developmental Biology, 103, 229-58. https://doi.org/10.1016/B978-0-12-385979-2.00008-3 (Original work published 2013)