Study protocol of the European Urban Burden of Disease Project: a health impact assessment study oleh Marta Cirach, Kees de Hoogh, Gerard Hoek, James Woodcock, Antonio Gasparrini, Haneen Khreis, N Mueller, Jose Barrera-Gómez, Marko Tainio, Audrey de Nazelle, David Rojas-Rueda, Cathryn Tonne, Meelan Thondoo, Carolyn Daher, Maria Foraster Pulido, Tamara Iungman, Sasha Khomenko, Ana Ramos, Evelise Pereira Barboza