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2. Needs of relatives of critically ill patients: A follow-up;Leske;Heart Lung,1986
3. Needs of relatives of critically ill patients: A descriptive study;Molter;Heart Lung,1979
4. Responses to the environment;Urban,1988
5. What are the needs of families of critically ill patients? A review of the literature since 1976;Hickey;Heart Lung,1990