Unique identifier (category Articles with hatnote templates targeting a nonexistent page) of an entity that serve as unique identifiers are called primary keys.[citation needed] In Mathematics, the set theory uses the concept of element indices...
6 KB (679 words) - 12:50, 15 April 2023
Nicotine (category Wikipedia articles needing page number citations from December 2013) associated dietary nicotine intake". Journal of Agricultural and Food Chemistry. 47 (8): 3113–20. doi:10.1021/jf990089w. PMID 10552617. Rodgman A, Perfetti...
124 KB (12,357 words) - 19:09, 11 September 2021
CiteSeerX (category Articles with invalid date parameter in template) academic search tools such as Google Scholar and Microsoft Academic Search.[citation needed] CiteSeer-like engines and archives usually only harvest documents...
13 KB (1,499 words) - 17:53, 12 December 2020
PubMed (category Articles with invalid date parameter in template) significant proportion of records correspond to "chemistry" (8.69%), "therapy" (8.39%), and "infection" (5%).[citation needed] In 2016, NLM changed the indexing...
31 KB (3,412 words) - 10:06, 7 September 2021