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In our first study, we compared the degree of correlation between these basic restrictions and the peak\u2010induced tissue temperature rise (\u0394<jats:italic>T<\/jats:italic>) for a representative range of population\/exposure scenarios using simple multi\u2010planar models exposed to plane wave conditions. In this complementary study, complex heterogeneous head models for an adult and 12\u2010year\u2010old child were analyzed at 1, 3, 6, 8, and 10\u2009GHz for a variety of exposure conditions. The complex models indicate that peak \u0394<jats:italic>T<\/jats:italic> is better correlated with peak 10\u2009g SAR than <jats:italic>S<\/jats:italic><jats:sub>inc<\/jats:sub> at 1 and 3\u2009GHz and with <jats:italic>S<\/jats:italic><jats:sub>inc<\/jats:sub> at 6\u201310\u2009GHz, in contrast to the results from Part I. Considering the planar and complex body modeling results together, and given the equivocal indications of the two metrics in the 6\u201310\u2009GHz range, we recommend that the breakpoint be set at 6\u2009GHz. This choice is also based on other considerations such as ease of assessment. We also recommend that the limit level of <jats:italic>S<\/jats:italic><jats:sub>inc<\/jats:sub> should be adjusted to provide a better match with 10\u2009g SAR in the induced tissue temperature rise. Bioelectromagnetics 31:467\u2013478, 2010. \u00a9 2010 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/bem.20574","type":"journal-article","created":{"date-parts":[[2010,3,30]],"date-time":"2010-03-30T14:12:14Z","timestamp":1269958334000},"page":"467-478","source":"Crossref","is-referenced-by-count":24,"title":["SAR versus <i>S<\/i><sub>inc<\/sub>: What is the appropriate RF exposure metric in the range 1\u201310\u2009GHz? Part II: Using complex human body models"],"prefix":"10.1002","volume":"31","author":[{"given":"Robert L.","family":"McIntosh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vitas","family":"Anderson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2010,8,2]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/bem.20578"},{"key":"e_1_2_7_3_1","unstructured":"ARPANSA.2003.Radiation protection standard: Maximum exposure levels to radiofrequency fields\u20143 kHz to 300 GHz. 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