title: Heart rate variability in patients with orthotopic heart transplantation: long-term follow-up.
authors.forename: P K
authors.initials: PK
authors.lastname: Stein
mesh_terms: D000328:Adult; D005260:Female; D005500:Follow-Up Studies; D006339:Heart Rate; D016027:Heart Transplantation / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged