Fish hoki, tuna, and mackerel are most effective sources. Basis of measurement: Work is measured from window to core area, including columns, but excluding common areas, washrooms, and platforms, if many. https://Www.digitaljournal.com/pr/news/press-advantage/lucid-leverage-is-offering-a-high-quality-press-release-service-to-clients-in-phoenix-az-and-all-over-the-country