Iranian future healthcare professionals' knowledge and opinions about rare diseases: cross-sectional study oleh Reza Jahanshahi, Amirreza Nasirzadeh, Mahan Farzan, Jan Domaradzki, Leila Jouybari, Akram Sanagoo, Mahour Farzan, Komeil Aghazadeh-Habashi, Ahmadreza Fallah Faraghe, Sadegh Bagheri, Marziyeh Samiee, Arina Ansari, Kimia Eskandari, Negar Namakkoobi, Fatemeh Soltanimoghadam, Hadi Mashali, Erfan Yavari, Saba Bay, Nafiseh Memaripanah, Elahe Meftah, Saeed Amanzadeh, Fatemeh Talati, Sasan Bahramzadeh