Class information for:
Level 1: HELICOBACTER PYLORI//UREA BREATH TEST//C 13 UREA BREATH TEST

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
285 3727 31.8 79%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
6 4 GASTROENTEROLOGY & HEPATOLOGY//ONCOLOGY//SURGERY 1371034
261 3       HELICOBACTER PYLORI//GASTROENTEROLOGY & HEPATOLOGY//HELICOBACTER 44585
196 2             HELICOBACTER PYLORI//HELICOBACTER//GASTRITIS 21432
285 1                   HELICOBACTER PYLORI//UREA BREATH TEST//C 13 UREA BREATH TEST 3727

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 HELICOBACTER PYLORI authKW 1706459 41% 14% 1518
2 UREA BREATH TEST authKW 699053 3% 66% 130
3 C 13 UREA BREATH TEST authKW 583156 3% 69% 103
4 STOOL ANTIGEN TEST authKW 389971 1% 90% 53
5 RAPID UREASE TEST authKW 340152 2% 72% 58
6 HELICOBACTER journal 284365 6% 16% 212
7 GASTRITIS authKW 176942 5% 11% 190
8 UREASE TEST authKW 167527 1% 68% 30
9 NODULAR GASTRITIS authKW 142449 1% 87% 20
10 CLO TEST authKW 123200 1% 79% 19

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Gastroenterology & Hepatology 81552 45% 1% 1663
2 Microbiology 7061 19% 0% 713
3 Infectious Diseases 2872 9% 0% 333
4 Medicine, General & Internal 2542 13% 0% 500
5 Pediatrics 1854 9% 0% 320
6 Tropical Medicine 980 3% 0% 98
7 Pathology 929 5% 0% 191
8 Public, Environmental & Occupational Health 407 6% 0% 211
9 Immunology 223 6% 0% 210
10 Nutrition & Dietetics 201 3% 0% 96

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 PESQUISA BACTERIOL 22782 0% 35% 8
2 GASTROENTEROL 20578 12% 1% 443
3 UNIV PARC TAULI MED 18719 0% 57% 4
4 SACHS PEDIAT 18429 0% 75% 3
5 UIMY 18429 0% 75% 3
6 GEN HOSP 16 16382 0% 100% 2
7 MED BUD EST 2 16382 0% 100% 2
8 MICROBIOL UDIAT CD 16382 0% 100% 2
9 MIL DETACHMENT 16382 0% 100% 2
10 MORNINGTON PENINSULA HOSP 16382 0% 100% 2

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 HELICOBACTER 284365 6% 16% 212
2 AMERICAN JOURNAL OF GASTROENTEROLOGY 16988 4% 1% 155
3 EUROPEAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY 13238 3% 2% 95
4 SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY 12567 3% 1% 123
5 ALIMENTARY PHARMACOLOGY & THERAPEUTICS 10903 2% 1% 93
6 JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION 9233 2% 1% 90
7 JOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY 8232 2% 1% 82
8 CANADIAN JOURNAL OF GASTROENTEROLOGY 6390 1% 2% 32
9 JOURNAL OF CLINICAL MICROBIOLOGY 6131 4% 1% 143
10 DIGESTIVE DISEASES AND SCIENCES 5781 3% 1% 96

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class		 LCSH search Wikipedia search
1 HELICOBACTER PYLORI 1706459 41% 14% 1518 Search HELICOBACTER+PYLORI Search HELICOBACTER+PYLORI
2 UREA BREATH TEST 699053 3% 66% 130 Search UREA+BREATH+TEST Search UREA+BREATH+TEST
3 C 13 UREA BREATH TEST 583156 3% 69% 103 Search C+13+UREA+BREATH+TEST Search C+13+UREA+BREATH+TEST
4 STOOL ANTIGEN TEST 389971 1% 90% 53 Search STOOL+ANTIGEN+TEST Search STOOL+ANTIGEN+TEST
5 RAPID UREASE TEST 340152 2% 72% 58 Search RAPID+UREASE+TEST Search RAPID+UREASE+TEST
6 GASTRITIS 176942 5% 11% 190 Search GASTRITIS Search GASTRITIS
7 UREASE TEST 167527 1% 68% 30 Search UREASE+TEST Search UREASE+TEST
8 NODULAR GASTRITIS 142449 1% 87% 20 Search NODULAR+GASTRITIS Search NODULAR+GASTRITIS
9 CLO TEST 123200 1% 79% 19 Search CLO+TEST Search CLO+TEST
10 C 14 UREA BREATH TEST 120122 1% 67% 22 Search C+14+UREA+BREATH+TEST Search C+14+UREA+BREATH+TEST

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref. in
cl.		 Shr. of ref. in
cl.		 Citations
1 MEGRAUD, F , LEHOURS, P , (2007) HELICOBACTER PYLORI DETECTION AND ANTIMICROBIAL SUSCEPTIBILITY TESTING.CLINICAL MICROBIOLOGY REVIEWS. VOL. 20. ISSUE 2. P. 280-+ 316 61% 256
2 BROWN, LM , (2000) HELICOBACTER PYLORI: EPIDEMIOLOGY AND ROUTES OF TRANSMISSION.EPIDEMIOLOGIC REVIEWS. VOL. 22. ISSUE 2. P. 283 -297 132 75% 382
3 GISBERT, JP , PAJARES, JM , (2004) REVIEW ARTICLE: C-13-UREA BREATH TEST IN THE DIAGNOSIS OF HELICOBACTER PYLORI INFECTION - A CRITICAL REVIEW.ALIMENTARY PHARMACOLOGY & THERAPEUTICS. VOL. 20. ISSUE 10. P. 1001 -1017 101 94% 145
4 WESTBLOM, TU , BHATT, BD , (1999) DIAGNOSIS OF HELICOBACTER PYLORI INFECTION.GASTRODUODENAL DISEASE AND HELICOBACTER PYLORI. VOL. 241. ISSUE . P. 215-235 148 87% 18
5 GUARNER, J , KALACH, N , ELITSUR, Y , KOLETZKO, S , (2010) HELICOBACTER PYLORI DIAGNOSTIC TESTS IN CHILDREN: REVIEW OF THE LITERATURE FROM 1999 TO 2009.EUROPEAN JOURNAL OF PEDIATRICS. VOL. 169. ISSUE 1. P. 15 -25 94 85% 36
6 KHALIFA, MM , SHARAF, RR , AZIZ, RK , (2010) HELICOBACTER PYLORI: A POOR MAN'S GUT PATHOGEN?.GUT PATHOGENS. VOL. 2. ISSUE . P. - 94 79% 48
7 HARRIS, PR , MADRAZO-DE LA GARZA, A , GUARNER, J , MUNOZ, O , TORRES, J , PEREZ-PEREZ, G , GOODMAN, KJ , ATHERTON, JC , GOLD, BD , (2000) A COMPREHENSIVE REVIEW OF THE NATURAL HISTORY OF HELICOBACTER PYLORI INFECTION IN CHILDREN.ARCHIVES OF MEDICAL RESEARCH. VOL. 31. ISSUE 5. P. 431 -469 171 56% 119
8 PATEL, SK , NATH, G , GULATI, AK , JAIN, AK , PRATAP, CB , (2014) DIAGNOSIS OF HELICOBACTER PYLORI: WHAT SHOULD BE THE GOLD STANDARD?.WORLD JOURNAL OF GASTROENTEROLOGY. VOL. 20. ISSUE 36. P. 12847 -12859 98 65% 20
9 BRECKAN, RK , PAULSSEN, EJ , ASFELDT, AM , KVAMME, JM , STRAUME, B , FLORHOLMEN, J , (2016) THE ALL-AGE PREVALENCE OF HELICOBACTER PYLORI INFECTION AND POTENTIAL TRANSMISSION ROUTES. A POPULATION-BASED STUDY.HELICOBACTER. VOL. 21. ISSUE 6. P. 586 -595 77 86% 0
10 GISBERT, JP , PAJARES, JM , (2004) STOOL ANTIGEN TEST FOR THE DIAGNOSIS OF HELICOBACTER PYLORI INFECTION: A SYSTEMATIC REVIEW.HELICOBACTER. VOL. 9. ISSUE 4. P. 347-368 81 93% 90

Classes with closest relation at Level 1


Rank Class id link
1 21848 COCCOID FORM//SPIRAL FORM//HELICOBACTER PYLORI
2 582 HELICOBACTER PYLORI//CLARITHROMYCIN//TRIPLE THERAPY
3 3499 ATROPHIC GASTRITIS//PEPSINOGEN//INTESTINAL METAPLASIA
4 10801 HELICOBACTER PYLORI//EXTRAGASTRIC DISEASES//HELICOBACTER
5 12384 GASTRIC METAPLASIA//HELICOBACTER PYLORI//DUODENAL ULCER
6 94 CAGA//HELICOBACTER PYLORI//VACA
7 7964 HELICOBACTER//HELICOBACTER HEILMANNII//HELICOBACTER SPP
8 22908 IDIOPATHIC PEPTIC ULCER//IDIOPATHIC ULCER//PEPTIC ULCER
9 23463 GASTRIC MICROBIOTA//LG21//GASTROENTEROL OSPED
10 28163 APT DOWNEY TEST//CHILDHOOD DUODENAL PERFORATION//CHILDHOOD DUODENAL ULCER

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