WHO three-step analgesic ladder

NCCN adult cancer pain

Principle and Practice of Oncology

Basic Clinical Oncology (2012)

Abeloff’s Clinical Oncology, 4th ed (2008)

DeVita, Hellman, and Rosenberg’s Cancer: Principle & Practice of Oncology (2008)

Clinical Oncology Fourth Edition: Basic Principles and Practice (2009)

Manual of Clinical Oncology (2012)

Abeloff's Clinical Oncology, 4th ed.