Dosimetrically administered nebulized morphine for breathlessness in very severe chronic obstructive pulmonary disease: a randomized, controlled trial oleh Piotr Janowiak, Małgorzata Krajnik, Zygmunt Podolec, Tomasz Bandurski, Iwona Damps-Konstańska, Piotr Sobański, David C. Currow, Ewa Jassem