Walling, Abigail L, and Hobart W Walling. “Phytophotodermatitis Induced by Wild Parsnip”. Dermatology Online Journal, vol. 24, no. 2, 2018, https://doi.org/10.5070/d3242038189.
Walling, A. L., & Walling, H. W. (2018). Phytophotodermatitis induced by wild parsnip. Dermatology Online Journal, 24(2). https://doi.org/10.5070/d3242038189