The phrase "alternatively we cannot exclude" is correct and usable in written English.
You can use it when presenting an alternative possibility or option while indicating that something cannot be disregarded.
Example: "We could consider a different approach; alternatively, we cannot exclude the possibility of continuing with our current strategy."
Alternatives: "on the other hand, we cannot rule out" or "conversely, we cannot dismiss".
Alternatively, we cannot exclude that cultures may contain a mixture of cells exclusively expressing either factor.
Alternatively, we cannot exclude the involvement of slight repression of centrosomal Kaiso in the observed growth stimulation.
Alternatively, we cannot exclude that the degree of O-acetylation varies due to minor differences in culture conditions between the batches used for purification.
Alternatively, we cannot exclude the possibility that scFv-6E may stabilize a recently described oligomeric species having fibrillar features [16], although the existence of such oligomers has yet to be correlated with cytopathology.
Alternatively, we cannot exclude that ascertainment bias might have affected results of analyses including Baltic Sea samples (see also below).
Alternatively, we cannot exclude that trastuzumab may control the systemic disease, leading to an improved survival [ 23].
Alternatively, since we cannot exclude the possibility that the ZFs or other domains of KREPA3 bind RNA, it may function by positioning the substrate RNAs relative to the functional domains of the other editosome proteins.
Alternatively, however, we cannot exclude the possibility of differential reporting of self-rated health in Kazakh Russians compared to other Kazakh ethnicities.
Alternatively although uncommon, we cannot exclude that the ERV3 promoter contains methylation-dependent transcription factor binding sites, as recently described for Epstein Barr virus.
Alternatively, because of the lack of EST data, we cannot exclude the possibility that our gene models were either incorrect or incomplete.
Although we cannot exclude the possibility that alternatively spliced AID proteins AID-ivs3 and AID-ΔE4 are below detection limit in MEC1AID-SRC, our data clearly show that these splice variants are not present at protein levels equivalently to transcript abundances as assessed by qRT-PCR.
