APA
Sampson E. L., . (2016). The use of facial expressions for pain assessment purposes in dementia: a narrative review. : .
Chicago
Sampson Elizabeth L, . 2016. The use of facial expressions for pain assessment purposes in dementia: a narrative review. : .
Harvard
Sampson E. L., . (2016). The use of facial expressions for pain assessment purposes in dementia: a narrative review. : .
MLA
Sampson Elizabeth L, . The use of facial expressions for pain assessment purposes in dementia: a narrative review. : . 2016.