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Neoplasms
Pain
Intractable Pain
Palliative Care
Terminal Care
Administration, Oral
Double-Blind Method
Home Care Services
Administration, Rectal
Analgesics, Opioid
Morphine
Analgesics
Methadone
Diphosphonates
Pain Measurement
Prospective Studies
Quality of Life
Treatment Outcome
Italy
Europe
Co-Publications
49
39
23
20
18
11
9
8
6
5
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