Gamborg, RN, H.; Riis, RN, J.; Christrup, MSc (Pharm), PhD, L.; Krantz, MD, T. Effect of Intraoral and Subcutaneous Morphine on Dyspnea at Rest in Terminal Patients With Primary Lung Cancer or Lung Metastases. J of Opioid Management 2013, 9, 269-274.