Ronald W. Helms

3.0k total citations
59 papers, 2.2k citations indexed

About

Ronald W. Helms is a scholar working on Statistics and Probability, Genetics and Hematology. According to data from OpenAlex, Ronald W. Helms has authored 59 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Statistics and Probability, 11 papers in Genetics and 11 papers in Hematology. Recurrent topics in Ronald W. Helms's work include Statistical Methods and Bayesian Inference (13 papers), Hemoglobinopathies and Related Disorders (11 papers) and Iron Metabolism and Disorders (10 papers). Ronald W. Helms is often cited by papers focused on Statistical Methods and Bayesian Inference (13 papers), Hemoglobinopathies and Related Disorders (11 papers) and Iron Metabolism and Disorders (10 papers). Ronald W. Helms collaborates with scholars based in United States, Brazil and United Kingdom. Ronald W. Helms's co-authors include Russell E. Ware, Lloyd J. Edwards, Winfred C. Wang, Beatrice E. Gee, Thomas R. Kinney, Rupa Redding‐Lallinger, Kwaku Ohene‐Frempong, Charles Daeschner, Elliott Vichinsky and Orah S. Platt and has published in prestigious journals such as New England Journal of Medicine, Blood and Technometrics.

In The Last Decade

Ronald W. Helms

58 papers receiving 2.1k citations

Peers

Countries citing papers authored by Ronald W. Helms

Since Specialization

Citations

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

Fields of papers citing papers by Ronald W. Helms

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ronald W. Helms. 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 Ronald W. Helms. The network helps show where Ronald W. Helms may publish in the future.

Co-authorship network of co-authors of Ronald W. Helms

This figure shows the co-authorship network connecting the top 25 collaborators of Ronald W. Helms. A scholar is included among the top collaborators of Ronald W. Helms 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 Ronald W. Helms. Ronald W. Helms is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Defining, Evaluating, and Removing Bias Induced by Linear Imputation in Longitudinal Clinical Trials with MNAR Missing Data 2011 ·Journal of Biopharmaceutical Statistics ·Ronald W. Helms, (unknown), (unknown), Mary W. Helms, (unknown), (unknown)	1
2	Stroke with transfusions changing to hydroxyurea (SWiTCH): A phase III randomized clinical trial for treatment of children with sickle cell anemia, stroke, and iron overload 2011 ·Pediatric Blood & Cancer ·Russell E. Ware, William H. Schultz, Nancy A. Yovetich, Nicole A. Mortier, Ofelia Álvarez, Lee Hilliard, Rathi V. Iyer, Scott T. Miller, Zora R. Rogers, John P. Scott, Myron A. Waclawiw, Ronald W. Helms	62
3	A method for fitting regression splines with varying polynomial order in the linear mixed model 2005 ·Statistics in Medicine ·Lloyd J. Edwards, Paul W. Stewart, James E. MacDougall, Ronald W. Helms	19
4	Estimating correlation by using a general linear mixed model: evaluation of the relationship between the concentration of HIV‐1 RNA in blood and semen 2003 ·Statistics in Medicine ·Hrishikesh Chakraborty, Ronald W. Helms, Pranab K. Sen, Myron S. Cohen	32
5	Arterial compliance adds to conventional risk factors for prediction of angiographic coronary artery disease 2003 ·American Heart Journal ·David M. Herrington, Karen Kesler, J. H. C. Reiber, Warren W. Davis, W. Virgil Brown, Ronald W. Helms, Stephen Mallon, Jeffrey K. Raines	30
6	Effect of hydroxyurea on growth in children with sickle cell anemia: Results of the HUG-KIDS study 2002 ·The Journal of Pediatrics ·Winfred C. Wang, Ronald W. Helms, Henry Lynn, Rupa Redding‐Lallinger, Beatrice E. Gee, Kwaku Ohene‐Frempong, Kim Smith‐Whitley, Myron A. Waclawiw, Elliott Vichinsky, Lori Styles, Russell E. Ware, Thomas R. Kinney	83
7	Viral burden in genital secretions determines male-to-female sexual transmission of HIV-1: a probabilistic empiric model 2001 ·AIDS ·Hrishikesh Chakraborty, Pranab K. Sen, Ronald W. Helms, Pietro Vernazza, Susan A. Fiscus, Joseph J. Eron, Bruce K. Patterson, Robert W. Coombs, John N. Krieger, Myron S. Cohen	221
8	Linear Equality Constraints in the General Linear Mixed Model 2001 ·Biometrics ·Lloyd J. Edwards, Paul W. Stewart, Keith E. Muller, Ronald W. Helms	16
9	Modeling Development of Sleep–Wake Behaviors: I. Using the Mixed General Linear Model fn1fn1We wish to thank Carol Shaw, Nancy Steelman, Deborah Lee, Di Liu, Debra B. Miller, and Charlene Garrett for technical assistance and Annette Frauman for editorial assistance. The preparation of this paper was supported by Grant NR01894 from the National Institute for Nursing Research, National Institutes of Health. 1998 ·Physiology & Behavior ·Diane Holditch‐Davis, Lloyd J. Edwards, Ronald W. Helms	44
10	Intentionally incomplete longitudinal designs: I. Methodology and comparison of some full span designs 1992 ·Statistics in Medicine ·Ronald W. Helms	33
11	Aerosolized Amiloride as Treatment of Cystic Fibrosis Lung Disease: A Pilot Study 1991 ·Advances in experimental medicine and biology ·(unknown), Nina L. Church, (unknown), James R. Yankaskas, Peter H. Gilligan, Malcolm King, Lloyd J. Edwards, Ronald W. Helms, Richard C. Boucher	13
12	Longitudinal designs and their statistical analysis in pediatric pulmonary research 1990 ·Pediatric Pulmonology ·Ronald W. Helms	3
13	A Pilot Study of Aerosolized Amiloride for the Treatment of Lung Disease in Cystic Fibrosis 1990 ·New England Journal of Medicine ·Michael R. Knowles, Nina L. Church, (unknown), James R. Yankaskas, Peter H. Gilligan, Malcolm King, Lloyd J. Edwards, Ronald W. Helms, Richard C. Boucher	273
14	Noncomparability of cross‐sectional and longitudinal estimates of lung growth in children 1989 ·Pediatric Pulmonology ·Edward N. Pattishall, Ronald W. Helms, Gerald L. Strope	16
15	Comparisons of parameter and hypothesis definitions in a general linear model 1988 ·Communication in Statistics- Theory and Methods ·Ronald W. Helms	11
16	Longitudinal Analysis in Pulmonary Disease Epidemiology 1988 ·American Review of Respiratory Disease ·Margaret R. Becklake, Ronald W. Helms, Michael D. Lebowitz, John W. Kusek, (unknown)	4
17	Ml estimation and lr tests for the multivariate normal distribution with general linear model mean and linear-structure covariance matrix: k-population complete-data case 1986 ·Communication in Statistics- Theory and Methods ·Dalton Francisco de Andrade, Ronald W. Helms	14
18	ML estimation for the multivariate normal distribution with general linear model mea1 and linear-structure covariance matrix; one-population, complete-data case 1986 ·Communication in Statistics- Theory and Methods ·Dalton Francisco de Andrade, Ronald W. Helms	14
19	The Average Estimated Variance Criterion for the Selection-of-Variables Problem in General Linear Models 1974 ·Technometrics ·Ronald W. Helms	21
20	Discussion of Invited Papers 1971 ·Technometrics ·Ronald W. Helms, Scott E. Michaels	1

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.

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