Erythrocyte Protoporphyrin System Internationale Normal Ranges (All Ages): (methodology)
   Black (African-American) Female Normal Range
   Black (African-American) Male Normal Range
   Hispanic (Mexican-American) Female Normal Range
   Hispanic (Mexican-American) Male Normal Range
   White Female Normal Range
   White Male Normal Range

Erythrocyte Protoporphyrin US Conversion Normal Ranges (All Ages): (methodology)
   Black (African-American) Female Normal Range*
   Black (African-American) Male Normal Range*
   Hispanic (Mexican-American) Female Normal Range*
   Hispanic (Mexican-American) Male Normal Range*
   White Female Normal Range*
   White Male Normal Range*

                                                               *: only available for paid members; sign up to view