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The major focus of the 2022 winter edition was the evaluation of the 2022 MeSH (Medical Subject Headings) vocabulary for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review

The major focus of the 2022 winter edition was the evaluation of the 2022 MeSH (Medical Subject Headings) vocabulary for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review

For the winter edition, the 2019 MeSH (Medical Subject Headings) vocabulary was evaluated for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review. All main index headings are

For the winter edition, the 2019 MeSH (Medical Subject Headings) vocabulary was evaluated for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review. All main index headings are

The 2020 MeSH (Medical Subject Headings) vocabulary was evaluated for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review. All main index headings are now linked to the 2020

The 2020 MeSH (Medical Subject Headings) vocabulary was evaluated for inclusion in the Classification index. Several additions and changes were made to the Index and Schedules based on this review. All main index headings are now linked to the 2020

The NLM Classification, available online at https://www.nlm.nih.gov/class/, is updated two times a year.

The NLM Classification, available online at https://www.nlm.nih.gov/class/, is updated two times a year.

Beginning with the 2020 summer edition, the NLM Classification has a new look and feel. With this new design comes a new URL:  https://classification.nlm.nih.gov/  The old URL: https://www.nlm.nih.gov/class will automatically be redirected to the new

Beginning with the 2020 summer edition, the NLM Classification has a new look and feel. With this new design comes a new URL:  https://classification.nlm.nih.gov/  The old URL: https://www.nlm.nih.gov/class will automatically be redirected to the new