papers. There are more than 100 that have been cited more than 1000 times each, and the following have been cited more than 5000 times each: (cited more than 17,000 times) (cited more than 10,000 times) Abstracting and indexing The journal is abstracted and indexed in Elsevier Biobase, BIOSIS Previews, CAB International, Chemical Abstracts Service, Current Contents, Embase, International Food Information Service, MEDLINE/Index Medicus, ProQuest databases, and the Science Citation Index. According to the Journal Citation Reports, the journal has a 2019 impact factor of 4.097. References External links Top 50 most frequently read papers and reviews Delayed open access journals Publications established in 1906 Biochemistry journals English-language journals Semi-monthly journals Hybrid open access journals 1906 establishments in England