1. Neuroendocrine Organization Laboratory (NEO), Lake Erie College of Osteopathic Medicine (LECOM), Erie, Pennsylvania, USA.
2. Department of Anatomy, Histology and Embryology, University of Szeged, Szeged, Hungary.
3. Department of Epidemiology & Public Health, University of Maryland Baltimore, Baltimore, Maryland, USA.
4. Department of Anatomy & Neurobiology, University of Maryland Baltimore, Baltimore, Maryland, USA.