Long-term exposure to particulate air pollution and black carbon in relation to natural and cause-specific mortality: a multicohort study in Sweden oleh Bertil Forsberg, Niklas Andersson, Debora Rizzuto, Göran Pershagen, Lars Barregard, Patrik Wennberg, Johan Nilsson Sommar, Gerd Sallsten, Anton Lager, David Segersson, Tom Bellander, Karin Leander, Kristina Eneroth, Eva M Andersson, Leonard Stockfelt, Petter LS Ljungman, Lars Gidhagen, Peter Molnar, Patrik KE Magnusson, Christer Johansson