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Table 2. 
Disciplinary data sets. PubMed and WoS were searched for articles using search terms “immunology,” “metabolism,” and “applied physics.” Counts of publications are shown for each of the three years analyzed and expressed in parentheses as a percentage of the total number of publications in our analytical WoS data set (Table 1) for that year. Note that applied physics and immunology represent about 3–6% of the publications in our analytical WoS datasets, but metabolism occupies nearly a fourth.
YearApplied physicsImmunologyMetabolism
1985 10,298 (2.7%) 21,606 (5.5%) 78,998 (20.2%) 
1995 21,012 (3.9%) 29,320 (5.5%) 121,247 (22.6%) 
2005 35,600 (4.0%) 37,296 (4.2%) 200,052 (22.6%) 
YearApplied physicsImmunologyMetabolism
1985 10,298 (2.7%) 21,606 (5.5%) 78,998 (20.2%) 
1995 21,012 (3.9%) 29,320 (5.5%) 121,247 (22.6%) 
2005 35,600 (4.0%) 37,296 (4.2%) 200,052 (22.6%) 
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