New England Journal of Medicine · 2016 · 405 citations · 45 references
In this study, most caregivers of critically ill patients reported high levels of depressive symptoms, which commonly persisted up to 1 year and did not decrease in some caregivers. (Funded by the Canadian Institutes of Health Research and others; ClinicalTrials.gov number, NCT00896220.).
45
Lenore Sawyer Radloff · Applied Psychological Measurement · 1977 · 52.6K citations · Full text
Psychological Co-morbidities, Measurement, Multiple Scale +19
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