[New diagnostic methods in cardiology (a review of patent information 1974-1981)].
D003937:Diagnosis, Differential; D006331:Heart Diseases / Q000175:diagnosis*; D006801:Humans; D008722:Methods; D010330:Patents as Topic; D014586:USSR
Novye sposoby diagnostiki v kardiologii (obzor patentnoĭ informatsii za 1974-1981 gg.