Papanastasiou Nikolaos is a Pulmonologist - Phthisiologist and maintains a private practice in Sepolia. Simultaneously, he is a permanent staff physician at the General Secretariat and at the Municipal Clinics of the City of Athens. Initially, he studied Physiotherapy at the Higher School of Physiotherapists of Athens and subsequently at the Medical School of the National and Kapodistrian University of Athens. During his studies, he worked as a Physiotherapist at SEGAS while concurrently attending lectures, laboratories, and clinical sessions at the Medical School. Upon completion of his studies, he began his specialty in Pulmonology - Phthisiology at the Pulmonology Clinic of the GNA "Amalia Fleming" Hospital. Finally, he possesses extensive experience and training in Pulmonology - Phthisiology, specializing in COPD - chronic obstructive pulmonary disease, respiratory infections, and the investigation of cough and dyspnea, and has numerous scientific publications.