Fight Cancer. Чарльз Спендер

example, the search string hepatitis[Title] AND "liver cancer"[Title/Abstract] returns articles where the word hepatitis is mentioned in the title and phrase "liver cancer" occurs in the title or abstract; you can use operators NOT

Примечания

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For example, the search string hepatitis[Title] AND "liver cancer"[Title/Abstract] returns articles where the word hepatitis is mentioned in the title and phrase "liver cancer" occurs in the title or abstract; you can use operators NOT and OR in a similar fashion. You can also use parentheses and construct long search strings with dozens of operators.