Martínez-Barrondo, S., P. A. Saiz, B. Morales, M. P. García-Portilla, E. Coto, V. Álvarez, and J. Bobes. 2005. “Serotonin Gene Polymorphisms in Patients With Panic Disorder”. Actas Españolas De Psiquiatría 33 (4):210-15. https://actaspsiquiatria.es/index.php/actas/article/view/1057.