Plasma tumour necrosis factor correlates with mRNA expression of tumour necrosis factor and mitochondrial transcription factors in skeletal muscle in patients with chronic heart failure treated with cardiac resynchronization therapy: potential role in myopathy. (December 2020) - Larsen, Alf I; Valborgland, Torstein; Ogne, Christer; Lindal, Sigurd; Halvorsen, Bente; Munk, Peter S; Kvaløy, Jan T; Aukrust, Pål; Yndestad, Arne