Bulgarian Psychiatric Association
- Provides information about organization, scientific events, legislation education and training activities.
- http://www.bpa-bg.org/

Trivia
- Medical center for plastic surgery located in Sofia, includes information on provided aesthetic operations.
- http://www.trivia-clinic.com/

Clinic of Pediatric Gastroenterology and Hepatology
- Provides diagnosis and management of the diseases of gastrointestinal tract, liver, and pancreas, as well as teaching students and research.
- http://www.angelfire.com/ak3/aaaaaa1/index.html

Medical University - Sofia
- State institution for higher medical education, includes affiliated hospitals, library, and R&D projects.
- http://www.medun.acad.bg/