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Ultrasound-guided combined interscalene-superficial cervical plexus block in clavicular fractures for surgical anesthesia: A retrospective observational study
Subpectoral plexus block to enhance surgical anesthesia produced by a multilevel thoracic paravertebral block for primary breast cancer surgery: a prospective randomized double-blind study
Specialist palliative care services for adults with advanced illness in hospital, hospice or community settings: a systematic review: BMBF-Schlussbericht