Knowledge, attitude, and practice of Iranian adults toward Persian Medicine: a national survey oleh Alireza Abbassian, Mohammad Hossein Abbaassi, Zahra Pouraskari, Farshid Alaedini, Abbas Abbasi-Ghahramanloo, Elham Emaratkar, Mohammad Hossein Ayati, Ebrahim Khadem, Meysam Shirzad, Malihe Tabarrai, Rasool Choopani, Mojgan Tansaz, Jila Sadighi, Hossein Rezaeizadeh, Shahin Akhondzadeh, Mahmood Khodadoost