| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T68 |
0-4 |
Sentence |
denotes |
2.2. |
| T69 |
5-37 |
Sentence |
denotes |
Inclusion and Exclusion Criteria |
| T70 |
38-113 |
Sentence |
denotes |
The following criteria were applied for screening of the eligible articles: |
| T71 |
114-277 |
Sentence |
denotes |
The original research articles and case reports which documented the influenza viruses in swine in natural settings across the world were included in the analysis. |
| T72 |
278-374 |
Sentence |
denotes |
The experimental studies which did not report the natural cases were excluded from the analysis. |
| T73 |
375-513 |
Sentence |
denotes |
The reviews, letters, editorials, conference proceedings, and articles in a language other than English were not included in the analysis. |
| T74 |
514-570 |
Sentence |
denotes |
Duplicate articles were also excluded from the analysis. |
| T75 |
571-674 |
Sentence |
denotes |
The eligible articles (n = 281) thus selected were included in the analysis for this systematic review. |
