Morelli X, Foraster M, Aguilera I, Basagana X, Corradi E, Deltell A, Ducret-Stich R, Phuleria H, Ragettli MS, Rivera M, Thomasson A, Kunzli N, Slama R. Short-term associations between traffic-related noise, particle number and traffic flow in three European citie. Atmos Environ. 2015 Feb;103:25-33. doi: 10.1016/j.atmosenv.2014.12.012