1. Laadullinen tutkimus;Alasuutari,1993
2. Anxiety: definition, relationship to depression, and proposal for an integrative model;Akiskal,1985
3. Effect of role clarity and empathy on support role performance and anxiety;Bramwell;Nursing Research,1986
4. High technology and humanity in intensive care: finding a balance;Carnevale;Intensive Care Nursing,1991
5. Culture and anxiety: cross-cultural evidence for the patterning of anxiety disorders;Good,1985