@misc{indiciae9f35e48e0863, title = {[Computerized precordial mapping--the Mapcard system].}, author = {V Gil and A M Aleixo and F J Almeida and N F Especial and R Seabra-Gomes and J C Fernandes}, year = {1989}, url = {https://pubmed.ncbi.nlm.nih.gov/2698712/}, note = {Source identifier: 2698712} }