Let me mention here an initial outcome of the comparison of the density of cohesive chains in RAs. An emergent research question during the analysis was whether the referents of the chains with the highest number of cohesive references carry any information about the main message of the text. In order to test this hypothesis, the referents of the six highest density chains in each RA were compared to the abstracts of the corresponding paper. All the abstracts contained at least five of these referents; therefore, it can be concluded that the density of chains is probably relevant for the identification of the main message of the text. This again proves that our analysis provides a valid description of cohesive reference, as it can select the main referents that are also perceived as such by expert writers.