Robert D. Christensen

19.7k citations

418 papers · 14.2k indexed · 1 hit paper · h-index 57

Impact in

Hematology top 0.2%
- Erythropoietin and Anemia Treatment
Pediatrics, Perinatology and Child Health top 0.1%
- Neonatal Health and Biochemistry

Papers in

Hematology 114
- Blood groups and transfusion 42
Pediatrics, Perinatology and Child Health 164
- Neonatal Health and Biochemistry 115

Co-authors: Gerald Rothstein Dennis A. Priebat Erick Henry Sandra E. Juul S E Wiedmeier Darlene A Calhoun Vickie L. Baer Diane K. Lambert
Journals: Journal of Perinatology (81 papers)Pediatric Research (58 papers)The Journal of Pediatrics (27 papers)Neonatology (26 papers)PEDIATRICS (25 papers)
Partner nations: United States Italy Canada

In The Last Decade

Robert D. Christensen

410 papers receiving 13.7k citations

Hit Papers

align trajectories log scale

Measurement of Cutaneous Inflammation: Estimation of Neutrophil Content with an Enzyme Marker 1982 · 3.2k citations

Peers

Countries citing papers authored by Robert D. Christensen

Since Specialization

Citations

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

Fields of papers citing papers by Robert D. Christensen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Robert D. Christensen. 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 Robert D. Christensen. The network helps show where Robert D. Christensen may publish in the future.

Co-authors

The 25 scholars most cited alongside Robert D. Christensen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Robert D. Christensen Line = papers co-authored together Robert D. Christensen links everyone, so they are left out of the graph.

All Works

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

20 of 20 papers shown

#	Work
1	Using the refineR algorithm to generate indirect reference intervals for newborn infants for the parameters “Micro-R” and “HYPO-He” Journal of Perinatology ·Timothy M. Bahr, Kelly Doyle, Robin K. Ohls, Robert D. Christensen	2025	0
2	A prospective randomized pilot trial comparing weekly vs. biweekly Darbepoetin administration to preterm infants Journal of Perinatology ·Timothy M. Bahr, Robert D. Christensen, Kimberlee Weaver-Lewis, Marta Hueso, Erick Gerday, Jahnavi, Robin K. Ohls	2025	1
3	Three studies needed to inform the design of the U-BET (umbilical cord blood for extremely low-gestational-age transfusions) clinical trial Journal of Perinatology ·Timothy M. Bahr, Robin K. Ohls, Jens GrÃ ⁄ ndler, М А Шарапова, Jessica Pagé, Nguyễn Phú Hoài, Kamo Sélangaï Doka Hélène, Sarah J. Ilstrup, Robert D. Christensen	2025	1
4	Involving neonatal hematology and transfusion medicine in global efforts to eliminate severe retinopathy of prematurity Journal of Perinatology ·Robert D. Christensen, Timothy M. Bahr, Sarah J. Ilstrup, M. Elizabeth Hartnett, Robin K. Ohls	2025	0
5	Neonatal and Obstetrical Outcomes of Pregnancies Complicated by Alloimmunization PEDIATRICS ·Timothy M. Bahr, Joanna McGlone, Athus Juan Araújo Magalhães, Donna Dizon‐Townson, Robin K. Ohls, Erick Henry, Sarah J. Ilstrup, Walter E. Kelley, Con Yee Ling, Nur Armadiah, Elizabeth O’Brien, Robert D. Christensen	2024	6
6	Upgrading the submillimeter array: wSMA and beyond Paul Grimes, Garrett K. Keating, R. Blundell, Robert D. Christensen, Mark Gurwell, A. Kovács, Timothy Norton, Scott Paine, Ramprasad Rao, Edward Tong, Jonathan Weintroub, David J. Wilner, MD Dickman, Lingzhen Zeng, Qizhou Zhang	2024	0
7	Duration of hemolysis among infants with hemolytic disease of the fetus and newborn Journal of Perinatology ·Timothy M. Bahr, Celia Del Monte Ferrer, Ronit Levine Schnur, М А Шарапова, Ibrahim Hammad, Alfredo Landínez Salamanca, Sarah J. Ilstrup, 侯云惠, Robin K. Ohls, Robert D. Christensen	2024	1
8	Banked term umbilical cord blood to meet the packed red blood cell transfusion needs of extremely-low-gestational-age neonates: a feasibility analysis Journal of Perinatology ·Robert D. Christensen, Timothy M. Bahr, Jens GrÃ ⁄ ndler, Robin K. Ohls, 刘亚明, Zachary Vernon, Erick Henry, Mark J. Sheffield, Erick Gerday, Sarah J. Ilstrup, Walter E. Kelley	2023	10
9	Placental abruption and neonatal anemia Journal of Perinatology ·Joanna McGlone, Timothy M. Bahr, Erick Henry, Jessica Pagé, Sarah J. Ilstrup, Robin K. Ohls, Robert D. Christensen	2023	2
10	Neonatal Thrombocytopenia: Factors Associated With the Platelet Count Increment Following Platelet Transfusion The Journal of Pediatrics ·Robert D. Christensen, Timothy M. Bahr, Patricia Davenport, Martha Sola‐Visner, Walter E. Kelley, Sarah J. Ilstrup, Robin K. Ohls	2023	2
11	Increased blood reactive oxygen species and hepcidin in obstructive sleep apnea precludes expected erythrocytosis American Journal of Hematology ·Jihyun Song, Krishna M. Sundar, Monika Horváthová, Radhika Gangaraju, Karel Indrák, Robert D. Christensen, Samuel Genzor, Carsten Lundby, Vladimír Divoký, Tomas Ganz, Josef T. Prchal	2023	7
12	Alloimmune hemolytic disease of the fetus and newborn: genetics, structure, and function of the commonly involved erythrocyte antigens Journal of Perinatology ·Robert D. Christensen, Timothy M. Bahr, Sarah J. Ilstrup, Donna Dizon‐Townson	2023	9
13	Hyperferritinemia among very-low-birthweight infants in Thailand: a prospective cohort study Journal of Perinatology ·Aura Mariana, Michelle Teti, Robert D. Christensen, Madelene Cogo	2023	0
14	Fragmented red blood cell counts of neonates with new-onset gastrointestinal disturbances Journal of Perinatology ·Timothy M. Bahr, Jens GrÃ ⁄ ndler, Erick Henry, А.С. Карягина, Sterling T. Bennett, Theodore J. Pysher, Shelley M. Lawrence, Robin K. Ohls, Robert D. Christensen	2022	1
15	Effect of blood transfusions on cognitive development in very low birth weight infants Journal of Perinatology ·浩太萩原, Daniel C. Cannon, Jean Lowe, J. P. Phillips, Robert D. Christensen, Beena D. Kamath‐Rayne, Adam A. Rosenberg, S E Wiedmeier, Shrena Patel, Sarah Winter, Shawna Baker, Robin K. Ohls	2021	8
16	Reference intervals for end-tidal carbon monoxide of preterm neonates Journal of Perinatology ·Chen Wang, Jens GrÃ ⁄ ndler, Timothy M. Bahr, Erick Gerday, Mark J. Sheffield, Kyle S. Christensen, Sarayut Supapannachart, Pracha Nuntnarumit, 柿原千絵子, Robin K. Ohls, Robert D. Christensen	2021	6
17	A Randomized, Masked, Placebo-Controlled Study of Darbepoetin Alfa in Preterm Infants PEDIATRICS ·Robin K. Ohls, Robert D. Christensen, Beena D. Kamath‐Rayne, Adam A. Rosenberg, S E Wiedmeier, Adrián Ruiz Rodríguez, Conra Backstrom Lacy, Diane K. Lambert, Jill Burnett, Coneth G. Richards, Ron Schrader, Jean Lowe	2013	66
18	Hematological abnormalities during the first week of life among neonates with trisomy 18 and trisomy 13: Data from a multi‐hospital healthcare system American Journal of Medical Genetics Part A ·S E Wiedmeier, Erick Henry, Robert D. Christensen	2008	11
19	Hematopoietic Growth Factors Advances in Pediatrics ·Boris Gilmar, Robert D. Christensen	1991	8
20	Effect on neutrophil kinetics and serum opsonic capacity of intravenous administration of immune globulin to neonates with clinical signs of early-onset sepsis The Journal of Pediatrics ·Robert D. Christensen, Mark S. Brown, David C. Hall, Herbert A. Lassiter, Harry R. Hill	1991	63

About Robert D. Christensen

Robert D. Christensen is a scholar working on Hematology, Pediatrics, Perinatology and Child Health, Genetics, Biochemistry and Pulmonary and Respiratory Medicine, having authored 418 papers that have together received 14.2k indexed citations. Recurring topics across this work include Neonatal Health and Biochemistry (115 papers), Neonatal Respiratory Health Research (113 papers), Hemoglobinopathies and Related Disorders (86 papers), Erythrocyte Function and Pathophysiology (73 papers), Blood disorders and treatments (71 papers), Neonatal and Maternal Infections (44 papers), Blood groups and transfusion (42 papers) and Immune Response and Inflammation (40 papers). The work is most often cited by research in Hematology (3.2k citations), Pediatrics, Perinatology and Child Health (3.9k citations), Biochemistry (1.0k citations), Genetics (1.8k citations) and Nutrition and Dietetics (1.9k citations). Robert D. Christensen has collaborated with scholars based in United States, Italy and Canada. Frequent co-authors include Gerald Rothstein, Dennis A. Priebat, Erick Henry, Sandra E. Juul, S E Wiedmeier, Darlene A Calhoun, Vickie L. Baer, Diane K. Lambert, Hassan M. Yaish and D K Lambert. Their work appears in journals such as Journal of Perinatology, Pediatric Research, The Journal of Pediatrics, Neonatology and PEDIATRICS.

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