Natural environments in the urban context and gut microbiota in infants oleh Charlene C. Nielsen, Mireia Gascon, Alvaro R. Osornio-Vargas, Catherine Shier, David S. Guttman, Allan B. Becker, Meghan B. Azad, Malcolm R. Sears, Diana L. Lefebvre, Theo J. Moraes, Stuart E. Turvey, Padmaja Subbarao, Tim K. Takaro, Jeffrey R. Brook, James A. Scott, Piush J. Mandhane, Hein M. Tun, Anita L. Kozyrskyj