Class information for:
Level 2: CELL FREE FETAL DNA//NON INVASIVE PRENATAL DIAGNOSIS//FETAL DNA

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
3087 2369 31.6 82%


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
17 4 REPRODUCTIVE BIOLOGY//OBSTETRICS & GYNECOLOGY//VETERINARY SCIENCES 563730
453 3       PRENATAL DIAGNOSIS//NUCHAL TRANSLUCENCY//OBSTETRICS & GYNECOLOGY 25435
3087 2             CELL FREE FETAL DNA//NON INVASIVE PRENATAL DIAGNOSIS//FETAL DNA 2369
4030 1                   CELL FREE FETAL DNA//NON INVASIVE PRENATAL DIAGNOSIS//FETAL DNA 1860
19360 1                   MICROCHIMERISM//FETAL MICROCHIMERISM//FETAL CELL MICROCHIMERISM 509

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 CELL FREE FETAL DNA authKW 1580953 6% 90% 137
2 NON INVASIVE PRENATAL DIAGNOSIS authKW 1472875 5% 95% 120
3 FETAL DNA authKW 1412968 5% 93% 118
4 NONINVASIVE PRENATAL DIAGNOSIS authKW 1214401 4% 90% 105
5 NON INVASIVE PRENATAL TESTING authKW 1189905 5% 86% 107
6 FETAL CELLS authKW 933611 5% 67% 108
7 MATERNAL PLASMA authKW 877111 4% 69% 99
8 MICROCHIMERISM authKW 800085 5% 54% 115
9 CIRCULATING FETAL NUCLE ACIDS address 573019 2% 91% 49
10 MATERNAL BLOOD authKW 517210 4% 47% 85

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 Obstetrics & Gynecology 49541 44% 0% 1034
2 Genetics & Heredity 10134 28% 0% 658
3 Medical Laboratory Technology 7676 10% 0% 228
4 Reproductive Biology 2471 7% 0% 157
5 Hematology 1097 7% 0% 173
6 Rheumatology 524 3% 0% 71
7 Medicine, General & Internal 242 6% 0% 151
8 Immunology 237 7% 0% 158
9 Medicine, Research & Experimental 197 5% 0% 109
10 Developmental Biology 159 2% 0% 48

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 CIRCULATING FETAL NUCLE ACIDS 573019 2% 91% 49
2 PRENATAL MED 166235 2% 23% 56
3 PROGRAM HUMAN IMMUNOGENET 94897 0% 82% 9
4 PHYSIOPATHOL DEV 86988 0% 75% 9
5 UNIV WOMENS HOSP 71013 1% 26% 21
6 HARRIS BIRTHRIGHT FETAL MED 63186 3% 8% 60
7 NE THAMES REG MOL GENET 57992 0% 75% 6
8 MOTHER INFANT 55982 1% 14% 30
9 CHEM PATHOL 51763 5% 3% 122
10 LI KA SHING HLTH SCI 50727 3% 6% 66

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 PRENATAL DIAGNOSIS 316294 16% 7% 370
2 FETAL DIAGNOSIS AND THERAPY 36302 3% 4% 78
3 CLINICAL CHEMISTRY 8946 4% 1% 91
4 JOURNAL OF GENETIC COUNSELING 4344 1% 2% 15
5 AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY 3700 3% 0% 77
6 GENETICS IN MEDICINE 3489 1% 1% 21
7 JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE 3359 1% 1% 33
8 ULTRASOUND IN OBSTETRICS & GYNECOLOGY 3223 1% 1% 34
9 SEMINARS IN FETAL & NEONATAL MEDICINE 2767 1% 2% 12
10 PLACENTA 2531 1% 1% 28

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 CELL FREE FETAL DNA 1580953 6% 90% 137 Search CELL+FREE+FETAL+DNA Search CELL+FREE+FETAL+DNA
2 NON INVASIVE PRENATAL DIAGNOSIS 1472875 5% 95% 120 Search NON+INVASIVE+PRENATAL+DIAGNOSIS Search NON+INVASIVE+PRENATAL+DIAGNOSIS
3 FETAL DNA 1412968 5% 93% 118 Search FETAL+DNA Search FETAL+DNA
4 NONINVASIVE PRENATAL DIAGNOSIS 1214401 4% 90% 105 Search NONINVASIVE+PRENATAL+DIAGNOSIS Search NONINVASIVE+PRENATAL+DIAGNOSIS
5 NON INVASIVE PRENATAL TESTING 1189905 5% 86% 107 Search NON+INVASIVE+PRENATAL+TESTING Search NON+INVASIVE+PRENATAL+TESTING
6 FETAL CELLS 933611 5% 67% 108 Search FETAL+CELLS Search FETAL+CELLS
7 MATERNAL PLASMA 877111 4% 69% 99 Search MATERNAL+PLASMA Search MATERNAL+PLASMA
8 MICROCHIMERISM 800085 5% 54% 115 Search MICROCHIMERISM Search MICROCHIMERISM
9 MATERNAL BLOOD 517210 4% 47% 85 Search MATERNAL+BLOOD Search MATERNAL+BLOOD
10 FETAL CELLS IN MATERNAL BLOOD 515815 2% 98% 41 Search FETAL+CELLS+IN+MATERNAL+BLOOD Search FETAL+CELLS+IN+MATERNAL+BLOOD

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 GIL, MM , QUEZADA, MS , REVELLO, R , AKOLEKAR, R , NICOLAIDES, KH , (2015) ANALYSIS OF CELL-FREE DNA IN MATERNAL BLOOD IN SCREENING FOR FETAL ANEUPLOIDIES: UPDATED META-ANALYSIS.ULTRASOUND IN OBSTETRICS & GYNECOLOGY. VOL. 45. ISSUE 3. P. 249 -266 77 91% 91
2 GEIFMAN-HOLTZMAN, O , BERMAN, JO , (2008) PRENATAL DIAGNOSIS: UPDATE ON INVASIVE VERSUS NONINVASIVE FETAL DIAGNOSTIC TESTING FROM MATERNAL BLOOD.EXPERT REVIEW OF MOLECULAR DIAGNOSTICS. VOL. 8. ISSUE 6. P. 727-751 169 77% 12
3 GAMMILL, HS , NELSON, JL , (2010) NATURALLY ACQUIRED MICROCHIMERISM.INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY. VOL. 54. ISSUE 2-3. P. 531-543 116 89% 33
4 EDLOW, AG , BIANCHI, DW , (2012) TRACKING FETAL DEVELOPMENT THROUGH MOLECULAR ANALYSIS OF MATERNAL BIOFLUIDS.BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE. VOL. 1822. ISSUE 12. P. 1970 -1980 118 89% 3
5 WONG, FCK , LO, YMD , (2016) PRENATAL DIAGNOSIS INNOVATION: GENOME SEQUENCING OF MATERNAL PLASMA.ANNUAL REVIEW OF MEDICINE, VOL 67. VOL. 67. ISSUE . P. 419 -432 75 82% 7
6 WRIGHT, CF , BURTON, H , (2009) THE USE OF CELL-FREE FETAL NUCLEIC ACIDS IN MATERNAL BLOOD FOR NON-INVASIVE PRENATAL DIAGNOSIS.HUMAN REPRODUCTION UPDATE. VOL. 15. ISSUE 1. P. 139 -151 99 84% 113
7 CHITTY, LS , LO, YMD , (2015) NONINVASIVE PRENATAL SCREENING FOR GENETIC DISEASES USING MASSIVELY PARALLEL SEQUENCING OF MATERNAL PLASMA DNA.COLD SPRING HARBOR PERSPECTIVES IN MEDICINE. VOL. 5. ISSUE 9. P. - 97 94% 0
8 THUNG, DT , BEULEN, L , HEHIR-KWA, J , FAAS, BH , (2015) IMPLEMENTATION OF WHOLE GENOME MASSIVELY PARALLEL SEQUENCING FOR NONINVASIVE PRENATAL TESTING IN LABORATORIES.EXPERT REVIEW OF MOLECULAR DIAGNOSTICS. VOL. 15. ISSUE 1. P. 111 -124 85 96% 2
9 SAYRES, LC , CHO, MK , (2011) CELL-FREE FETAL NUCLEIC ACID TESTING: A REVIEW OF THE TECHNOLOGY AND ITS APPLICATIONS.OBSTETRICAL & GYNECOLOGICAL SURVEY. VOL. 66. ISSUE 7. P. 431 -442 94 88% 10
10 SEKIZAWA, A , PURWOSUNU, Y , MATSUOKA, R , KOIDE, K , OKAZAKI, S , FARINA, A , SAITO, H , OKAI, T , (2007) RECENT ADVANCES IN NON-INVASIVE PRENATAL DNA DIAGNOSIS THROUGH ANALYSIS OF MATERNAL BLOOD.JOURNAL OF OBSTETRICS AND GYNAECOLOGY RESEARCH. VOL. 33. ISSUE 6. P. 747 -764 114 80% 13

Classes with closest relation at Level 2


Rank Class id link
1 1063 NUCHAL TRANSLUCENCY//PRENATAL DIAGNOSIS//PRENATAL SCREENING
2 1345 TRANSFUSION//VOX SANGUINIS//AUTOIMMUNE HEMOLYTIC ANEMIA
3 395 GENETICS & HEREDITY//ANNALES DE GENETIQUE//HOLOPROSENCEPHALY
4 1832 HLA G//AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY//JOURNAL OF REPRODUCTIVE IMMUNOLOGY
5 382 DNA METHYLATION//EPIGENETICS//METHYLATION
6 679 PREECLAMPSIA//PRE ECLAMPSIA//HYPERTENSION IN PREGNANCY
7 2240 TWIN TWIN TRANSFUSION SYNDROME//MONOCHORIONIC TWINS//TWIN TO TWIN TRANSFUSION SYNDROME
8 1768 HEMOGLOBIN//ALPHA THALASSEMIA//HEMOGLOBINOPATHIES
9 3251 NEUROENDOCRINOIMMUNOL//EXPT RHEUMATOL NEUROENDOCRINOIMMUNOL//EVANS IMMUNOL
10 2679 PREGNANCY//MOTHERS RHEUMAT DIS//PREGNANCY RHEUMAT DIS

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