Evaluating the Protective Effect of Ailanthus altissima (Mill.) Swingle in a Rat Model of Acetic Acid-Induced Ulcerative Colitis oleh Mohammad Mehdi Gravandi, Seyede Zahra Hosseini, Seyede Darya Alavi, Seyed Mohammad Reza Jafari, Mohsen Zhaleh, Mohammad Hossein Farzaei