Shan S. Ratnam

2.0k total citations
58 papers, 1.6k citations indexed

About

Shan S. Ratnam is a scholar working on Public Health, Environmental and Occupational Health, Reproductive Medicine and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Shan S. Ratnam has authored 58 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Public Health, Environmental and Occupational Health, 19 papers in Reproductive Medicine and 18 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Shan S. Ratnam's work include Reproductive Biology and Fertility (23 papers), Ovarian function and disorders (10 papers) and Pluripotent Stem Cells Research (8 papers). Shan S. Ratnam is often cited by papers focused on Reproductive Biology and Fertility (23 papers), Ovarian function and disorders (10 papers) and Pluripotent Stem Cells Research (8 papers). Shan S. Ratnam collaborates with scholars based in Singapore, Sweden and Australia. Shan S. Ratnam's co-authors include Ariff Bongso, Soon-Chye Ng, Chui‐Yee Fong, Henry Sathananthan, S. K. Ng, Sabaratnam Arulkumaran, A.C. Roy, P.C. Wong, Sven Montán and Mary Rauff and has published in prestigious journals such as American Journal of Obstetrics and Gynecology, Human Reproduction and Fertility and Sterility.

In The Last Decade

Shan S. Ratnam

58 papers receiving 1.5k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Shan S. Ratnam Singapore	23	916	650	509	398	244	58	1.6k
J. Goldfarb United States	30	1.5k 1.6×	1.5k 2.3×	395 0.8×	925 2.3×	154 0.6×	93	2.4k
Phillip E. Patton United States	20	571 0.6×	755 1.2×	374 0.7×	288 0.7×	121 0.5×	66	1.5k
M. Camus Belgium	29	1.4k 1.5×	1.9k 2.9×	472 0.9×	677 1.7×	366 1.5×	55	2.5k
D. Healy Australia	27	898 1.0×	1.6k 2.4×	501 1.0×	650 1.6×	221 0.9×	59	2.8k
Nagayasu Toyoda Japan	23	331 0.4×	309 0.5×	263 0.5×	224 0.6×	149 0.6×	90	1.5k
Shai E. Elizur Israel	26	1.1k 1.2×	1.1k 1.7×	372 0.7×	452 1.1×	218 0.9×	66	1.7k
Philippe Bouchard France	19	408 0.4×	710 1.1×	235 0.5×	159 0.4×	198 0.8×	42	1.6k
C.V. Steer United Kingdom	12	668 0.7×	1.0k 1.6×	104 0.2×	388 1.0×	66 0.3×	20	1.4k
Donald Maier United States	27	1.0k 1.1×	1.3k 2.1×	108 0.2×	630 1.6×	95 0.4×	71	2.1k
Siegfried Rotmensch United States	25	568 0.6×	258 0.4×	286 0.6×	988 2.5×	178 0.7×	77	2.1k

Countries citing papers authored by Shan S. Ratnam

Since Specialization

Citations

This map shows the geographic impact of Shan S. Ratnam'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 Shan S. Ratnam with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Shan S. Ratnam more than expected).

Fields of papers citing papers by Shan S. Ratnam

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Shan S. Ratnam. 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 Shan S. Ratnam. The network helps show where Shan S. Ratnam may publish in the future.

Co-authorship network of co-authors of Shan S. Ratnam

This figure shows the co-authorship network connecting the top 25 collaborators of Shan S. Ratnam. A scholar is included among the top collaborators of Shan S. Ratnam based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Shan S. Ratnam. Shan S. Ratnam is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Biswas, Arijit, et al.. (2000). Effect of Implanon® use on selected parameters of thyroid and adrenal function. Contraception. 62(5). 247–251. 13 indexed citations

Ratnam, Shan S., et al.. (1997). Early fetal blood sampling — another available option for early prenatal diagnosis. Journal of Perinatal Medicine. 25(6). 505–508. 1 indexed citations

Lee, Tat‐Leang, et al.. (1997). Effects of propofol on gravid human uterine muscle. Journal of Anesthesia. 11(1). 71–74. 8 indexed citations

Montán, Sven, et al.. (1996). Fetal and Neonatal Haemodilution Associated with Multiple Placental Chorioangioma: Case Report. Journal of obstetrics and gynaecology research. 22(1). 43–46. 4 indexed citations

Arulkumaran, Sabaratnam, et al.. (1996). Search for the most predictive tests of fetal well-being in early labor. Journal of Perinatal Medicine. 24(3). 199–206. 16 indexed citations

Montán, Sven, et al.. (1996). Randomised controlled trial of methyldopa and isradipine in preeclampsia – effects on uteroplacental and fetal hemodynamics. Journal of Perinatal Medicine. 24(2). 177–184. 24 indexed citations

Lee, Kok‐Onn, et al.. (1995). Effect of growth hormone therapy in men with severe idiopathic oligozoospermia. European Journal of Endocrinology. 132(2). 159–162. 38 indexed citations

Lee, Tat‐Leang, et al.. (1995). Effects of propofol on guinea pig respiratory smooth muscle. Journal of Anesthesia. 9(3). 265–270. 5 indexed citations

Yong, Eu‐Leong, et al.. (1994). Complete androgen insensitivity due to a splice-site mutation in the androgen receptor gene and genetic screening with single-stranded conformation polymorphism. Fertility and Sterility. 61(5). 856–862. 27 indexed citations

10.

Bongso, Ariff, Chui‐Yee Fong, Soon-Chye Ng, & Shan S. Ratnam. (1994). Human embryonic behavior in a sequential human oviduct-endometrial coculture system. Fertility and Sterility. 61(5). 976–978. 32 indexed citations

11.

Bongso, Ariff, et al.. (1993). Mitogenic and cytogenetic evaluation of transforming growth factor‐β on murine preimplantation embryonic development in vitro. Molecular Reproduction and Development. 36(4). 482–487. 15 indexed citations

12.

Bongso, Ariff, Chui‐Yee Fong, Soon-Chye Ng, & Shan S. Ratnam. (1993). The search for improved in-vitro systems should not be ignored: embryo co-culture may be one of them. Human Reproduction. 8(8). 1155–1160. 34 indexed citations

13.

Roy, A.C. & Shan S. Ratnam. (1992). Biosynthesis of prostaglandins by human spermatozoa in vitro and their role in acrosome reaction and fertilization. Molecular Reproduction and Development. 33(3). 303–306. 20 indexed citations

14.

Ng, Soon-Chye, Ariff Bongso, & Shan S. Ratnam. (1991). Microinjection of human oocytes: a technique for severe oligoasthenoteratozoospermia. Fertility and Sterility. 56(6). 1117–1123. 49 indexed citations

15.

Bongso, Ariff, Soon-Chye Ng, Chui‐Yee Fong, & Shan S. Ratnam. (1991). Cocultures: a new lead in embryo quality improvement for assisted reproduction. Fertility and Sterility. 56(2). 179–191. 92 indexed citations

16.

Sathananthan, Henry, Ariff Bongso, Soon-Chye Ng, et al.. (1990). Ultrastructure of preimplantation human embryos co-cultured with human ampullary cells. Human Reproduction. 5(3). 309–318. 54 indexed citations

17.

Bongso, Ariff, et al.. (1988). Chromosome anomalies in human oocytes failing to fertilize after insemination in vitro. Human Reproduction. 3(5). 645–649. 57 indexed citations

18.

Bongso, Ariff, et al.. (1988). Establishment of human endometrial cell cultures. Human Reproduction. 3(6). 705–713. 40 indexed citations

19.

Roy, A.C., et al.. (1985). Another Look at Initiation of Human Parturition. Australian and New Zealand Journal of Obstetrics and Gynaecology. 25(2). 94–100. 4 indexed citations

20.

Ratnam, Shan S., et al.. (1977). The safety of local anesthesia and outpatient treatment: a controlled study of induced abortion by vacuum aspiration.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 8(5). 118–24. 15 indexed citations

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.

Explore authors with similar magnitude of impact