O. A. C. Viegas
- Obstetrics and Gynecology top 2%
- Maternal and Perinatal Health Interventions 8
- Gestational Diabetes Research and Management 6
- Pregnancy and preeclampsia studies 5
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- Birth, Development, and Health 9
- Global Maternal and Child Health 8
- Maternal and fetal healthcare 6
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- Reproductive Health and Contraception 11
- Reproductive Medicine top 10%
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- Blood Coagulation and Thrombosis Mechanisms 8
- Cited by
- Obstetrics and GynecologyPediatrics, Perinatology and Child HealthPublic Health, Environmental and Occupational Health
- Journals
- American Journal of Clinical Nutrition (1 paper)Social Science & Medicine (1 paper)Human Reproduction (1 paper)
- Partner nations
- SingaporeUnited KingdomMalaysia
In The Last Decade
O. A. C. Viegas
67 papers receiving 866 citations
Peers
Comparison fields: 5 of 86
- Obstetrics and Gynecology 285
- Pediatrics, Perinatology and Child Health 397
- Public Health, Environmental and Occupational Health 327
- Reproductive Medicine 80
- Hematology 63
Countries citing papers authored by O. A. C. Viegas
This map shows the geographic impact of O. A. C. Viegas's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by O. A. C. Viegas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites O. A. C. Viegas more than expected).
Fields of papers citing papers by O. A. C. Viegas
This network shows the impact of papers produced by O. A. C. Viegas. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by O. A. C. Viegas. The network helps show where O. A. C. Viegas may publish in the future.
Co-authorship network
The 25 scholars most cited alongside O. A. C. Viegas, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | Male fetuses are associated with increased risk for cesarean delivery in Malaysian nulliparae. | 2008 | 6 |
| 2 | 2004 | 14 | |
| 3 | 1999 | 1 | |
| 4 | 1997 | 52 | |
| 5 | 1995 | 4 | |
| 6 | 1994 | 19 | |
| 7 | 1994 | 13 | |
| 8 | 1993 | 8 | |
| 9 | 1993 | 2 | |
| 10 | 1992 | 13 | |
| 11 | 1991 | 28 | |
| 12 | 1990 | 4 | |
| 13 | 1990 | 7 | |
| 14 | 1989 | 6 | |
| 15 | 1989 | 12 | |
| 16 | 1989 | 16 | |
| 17 | 1989 | 12 | |
| 18 | 1989 | 1 | |
| 19 | 1982 | 73 | |
| 20 | 1982 | 59 |
About O. A. C. Viegas
O. A. C. Viegas is a scholar working on Obstetrics and Gynecology, Pediatrics, Perinatology and Child Health and Hematology, having authored 71 papers that have together received 962 indexed citations. Recurring topics across this work include Reproductive Health and Contraception (11 papers), Birth, Development, and Health (9 papers), Blood Coagulation and Thrombosis Mechanisms (8 papers), Maternal and Perinatal Health Interventions (8 papers), Global Maternal and Child Health (8 papers), Gestational Diabetes Research and Management (6 papers), Maternal and fetal healthcare (6 papers) and Pregnancy and preeclampsia studies (5 papers). The work is most often cited by research in Obstetrics and Gynecology (285 citations), Pediatrics, Perinatology and Child Health (397 citations) and Public Health, Environmental and Occupational Health (327 citations). O. A. C. Viegas has collaborated with scholars based in Singapore, United Kingdom and Malaysia. Frequent co-authors include S. S. Ratnam, Kuldip Singh, B A Wharton, S.S. Ratnam, T J Cole, P. Scott, Anna M. Flynn, John Kelly, Soledad Dı́az and Irving Sivin. Their work appears in journals such as American Journal of Clinical Nutrition, Social Science & Medicine and Human Reproduction.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.