An automated patient registration and treatment randomization system

APACHE II

William A. Knaus, Elizabeth A. Draper, Douglas P. Wagner et al. · Critical Care Medicine · 1985 · 13.7K citations

Medicine, Internal Medicine, Clinical Classification Systems +16

APACHE II-A Severity of Disease Classification System

William A. Knaus, Elizabeth A. Draper, Douglas P. Wagner et al. · Critical Care Medicine · 1986 · 13.4K citations

Health Professions, Biostatistics, Clinical Classification Systems +12

APACHE II: a severity of disease classification system.

Elizabeth S. Draper · PubMed · 1985 · 6.1K citations

Medicine, Internal Medicine, Acute Care Medicine +16

The randomization and stratification of patients to clinical trials

Marvin Zelen · Journal of Chronic Diseases · 1974 · 614 citations

Public Health, Biostatistics, Clinical Sciences +10

Properties of permuted-block randomization in clinical trials

John P. Matts, John M. Lachin · Controlled Clinical Trials · 1988 · 330 citations

Public Health, Biostatistics, Experimental Design +11