[Coauthorship networks and institutional collaboration in Revista de Neurología].
BACKGROUND
Scientific cooperation is essential for the advance of science. Bibliometrics and social network analysis offer evaluation indicators to analyse collaboration in scientific papers. The aim of this study is to characterize scientific collaboration patterns in Revista de Neurología between 2002 and 2006.


METHODS
Coauthorships and institutional relationships of papers published in Revista de Neurología have been identified. Collaboration Index, the most productive authors' and institutional collaboration patterns and the types of institutional collaborations have been quantified. Also, it has been constructed the coauthorship networks and the institutional collaboration network. Networks have been identified and represented using Access and Pajek software tools.


RESULTS
The Collaboration Index was 4.01. 56.54% of papers involved institutional collaboration. The collaboration between institutions of the same country prevails (52.7%), followed by collaborations between departments, services or units of the same institution (40.47%) and international collaboration (6.83%). 45 coauthorship networks involving 149 investigators with a high intensity of collaboration and a large institutional network involved 80 centres were observed.


CONCLUSIONS
Revista de Neurología covers scientific production of a high number of research groups. It has been observed a positive evolution in the collaboration patterns over the time. Nevertheless, it is essential to encourage inter-regional and international collaboration.
Instituto de Historia de la Ciencia, Universitat de València-CSIC, Valencia, Espana.
G
G
González-Alcaide
A
A
Alonso-Arroyo
J
J
González de Dios
A P
AP
Sempere
J C
JC
Valderrama-Zurián
R
R
Aleixandre-Benavent
D001319:Authorship; D015706:Bibliometrics; D007373:Interinstitutional Relations; D009462:Neurology; D010506:Periodicals as Topic