During the 2019 Moscow City Duma election Navalny supported independent candidates, most of whom were not allowed to participate in the elections, which led to mass street protests. In July 2019, Navalny was arrested, first for ten days, and then, almost immediately, for 30 days. On the evening of 28 July, he was hospitalized with severe damage to his eyes and skin. At the hospital, he was diagnosed with an "allergy," although this diagnosis was disputed by Anastasia Vasilieva, an ophthalmologist who previously treated Navalny after a chemical attack by an alleged protester in 2017. Vasilieva questioned the diagnosis and suggested the possibility that Navalny's condition was the result of "the damaging effects of undetermined chemicals". On 29 July 2019, Navalny was discharged from hospital and taken back to prison, despite the objections of his personal physician who questioned the hospital's motives. Supporters of Navalny and journalists near the hospital were attacked by the police and many were detained. In response, he initiated the Smart voting project.