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Journal of Biopharmaceutical Statistics
|
March 11, 2011
Defining, evaluating, and removing bias induced by linear imputation in longitudinal clinical trials with MNAR missing data
Ronald W Helms, Laura Helms Reece, Russell W Helms, et al.
Statistics in Medicine
|
October 1, 1992
Intentionally incomplete longitudinal designs: I. Methodology and comparison of some full span designs
R W Helms
Pharmaceutical Statistics
|
September 14, 2016
Precise definitions of some terminology for longitudinal clinical trials: subjects, patient populations, analysis sets, intention to treat, and related terms
Ronald W Helms
Biometrics
|
March 1, 1989
Maximum likelihood estimation for incomplete repeated-measures experiments under an ARMA covariance structure
J Rochon, R W Helms
Controlled Clinical Trials
|
February 1, 1990
The conflict between relational databases and the hierarchical structure of clinical trials data
R W Helms, I McCanless
The American Review of Respiratory Disease
|
December 1, 1984
A longitudinal study of spirometry in young black and young white children
G L Strope, R W Helms
Statistics in Medicine
|
July 15, 1995
Model selection techniques for the covariance matrix for incomplete longitudinal data
J J Grady, R W Helms
Blood
|
February 10, 2012
Stroke With Transfusions Changing to Hydroxyurea (SWiTCH)
Russell E Ware, Ronald W Helms,
Genesis (New York, N.Y. : 2000)
|
September 6, 2001
Identification of chromosomal deficiencies that modify Drosophila mastermind mutant phenotypes
B Yedvobnick, W Helms, B Barrett
Biometrics
|
June 1, 1995
EM mixed model analysis of data from informatively censored normal distributions
F B Smith, R W Helms
Page
of 9
Search research articles
Search
Showing results (1-10 of 87) with videos related to
Sort By:
Page
of 9
Journal of Biopharmaceutical Statistics
|
March 11, 2011
Defining, evaluating, and removing bias induced by linear imputation in longitudinal clinical trials with MNAR missing data
Ronald W Helms, Laura Helms Reece, Russell W Helms, et al.
Statistics in Medicine
|
October 1, 1992
Intentionally incomplete longitudinal designs: I. Methodology and comparison of some full span designs
R W Helms
Pharmaceutical Statistics
|
September 14, 2016
Precise definitions of some terminology for longitudinal clinical trials: subjects, patient populations, analysis sets, intention to treat, and related terms
Ronald W Helms
Biometrics
|
March 1, 1989
Maximum likelihood estimation for incomplete repeated-measures experiments under an ARMA covariance structure
J Rochon, R W Helms
Controlled Clinical Trials
|
February 1, 1990
The conflict between relational databases and the hierarchical structure of clinical trials data
R W Helms, I McCanless
The American Review of Respiratory Disease
|
December 1, 1984
A longitudinal study of spirometry in young black and young white children
G L Strope, R W Helms
Statistics in Medicine
|
July 15, 1995
Model selection techniques for the covariance matrix for incomplete longitudinal data
J J Grady, R W Helms
Blood
|
February 10, 2012
Stroke With Transfusions Changing to Hydroxyurea (SWiTCH)
Russell E Ware, Ronald W Helms,
Genesis (New York, N.Y. : 2000)
|
September 6, 2001
Identification of chromosomal deficiencies that modify Drosophila mastermind mutant phenotypes
B Yedvobnick, W Helms, B Barrett
Biometrics
|
June 1, 1995
EM mixed model analysis of data from informatively censored normal distributions
F B Smith, R W Helms
Page
of 9