Analysis of information sources in references of the Wikipedia article "Vínculo de par" in Portuguese language version.
|display-authors=Berger M
(ajuda)|display-authors=Fuentes A
(ajuda)|arquivourl=
requer |url=
(ajuda) – via www.ncbi.nlm.nih.gov|arquivourl=
requer |url=
(ajuda) – via www.ncbi.nlm.nih.gov