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1 Answer 1

For the specific articles you gave as an example, the first DOI has an error in the article title in its metadata. The second has the correct title.

  • The DOI 10.1002/(sici)1099-1573(200003)14:2<118::aid-ptr493>3.0.co;2-p was issued first. In the metadata for that DOI, the title is given as Evaluation of antibacterial activity ofAsparagus racemosus Willd. root (missing a space between "of" and "Asparagus").
  • The DOI 10.1002/(sici)1099-1573(200003)14:2<118::aid-ptr493>3.3.co;2-g was issued a few days later, and in the metadata, the title is corrected to Evaluation of antibacterial activity of Asparagus racemosus Willd. root.