Points were attributed to each of these items and the result is expressed in a decreasing numerical classification defining strata: 25 to 34 points stratum A , 17 to 24 points stratum B , 11 to 16 points stratum C , 6 to 10 points stratum D , and 0 to 5 points stratum E. N Engl J Med ; 21 :
Because of the similarity of the mechanisms of transmission and, consequently, of the more vulnerable groups, research on aids indirectly provided information about behavioral and biological aspects related to the transmission of hepatitis B.
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As shown in Table 1the mean age of participants was 23 years, with a wide range 13 to 64 years. A Critical Analysis Puspalata C.
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The C and D social strata reached View PDF.
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