Parra Medina, Luis Enrique, et al. “Diagnostic Latency and Perception of Prodromal Symptoms in Patients With Parkinson’s Disease in Yucatán”. Horizonte Sanitario, vol. 22, no. 2, Apr. 2023, pp. 337-42, https://doi.org/10.19136/hs.a22n2.5390.