No abstract available
Publication types
-
Clinical Trial
-
Letter
-
Randomized Controlled Trial
MeSH terms
-
Administration, Cutaneous
-
Adult
-
Analgesia*
-
Back Pain / prevention & control*
-
Double-Blind Method
-
Humans
-
Morphine / administration & dosage*
-
Morphine / blood
-
Placebos
-
Ultrasonic Therapy