Sentence examples for this was previously observed from inspiring English sources

This was previously observed by Shabalina et al. [25].

This was previously observed by Kader and colleagues [22] who studied 5,000 patients and found a strong association between Gleason grade and rs2735839 (P = 3.710−7).

This was previously observed in several in vitro and in vivo experiments, where single host infection led to host-specific viral fitness increase and higher mutation rates [34] [36].

The second messenger systems to which EP3 is linked would be expected to result in vasoconstriction instead of vasodilatation and this was previously observed by others [ 74].

This was previously observed by Udler et al. who reported negligible mRNA levels of LOC643714 in normal breast and breast tumours [ 13].

This was previously observed with both mouse and Drosophila enhancer trap vectors and was speculated to stem from the transcriptional complexity of neural tissue [ 11, 28].

This result was previously observed in other studies and explained by the cross-stressor adaptation hypothesis.

This behavior was previously observed and is associated to a variation the effective electric field in the QW region [4].

This behavior was previously observed by Viveiros et al. (2010) for data acquired in the same sampling sites.

This variation was previously observed and attributed to the different ionic radii of Fe ions substituted in the ZnO lattice [41].

This trend was previously observed in other Ficus species, fig wasps, and other locations (Compton et al. [2000]; Harrison and Rasplus [2006]; Ahmed et al. [2009]; Kobmoo et al. [2010]).