Analysis of the Availability of Healthy Food to Residents of Megalopolis: Who Try to Keep to a Healthy LifestyleO.V. Astafeva, I.A. Osipova, E.A. Egorova and Iu.S. FominaSHS Web Conf., 62 (2019) 15004DOI: https://doi.org/10.1051/shsconf/20196215004