Perception of the COVID-19 Pandemic Among Patients With Inflammatory Bowel Disease in the Time of Telemedicine: Cross-Sectional Questionnaire Study - Zingone, Fabiana; Siniscalchi, Monica; Savarino, Edoardo Vincenzo; Barberio, Brigida; Cingolani, Linda; D'Incà, Renata; De Filippo, Francesca Romana; Camera, Silvia; Ciacci, Carolina (Journal of Medical Internet Research, 2020)