Even when two laboratories use the same number of ordinal categories, category definitions may differ (compare, for example, Cropley et al. [18] with Dolinoy et al. [19]), thus adding to the difficulty of comparison between studies.
A second problem is the difficulty of comparisons across cultures.
The culture medium used in our study could provide a new means for the standardization of prostate TIC cultures, and may possibly reduce the difficulties of the comparison between laboratory cell lines and patient material.
The difficulties of such comparisons also became evident early on to cross-cultural researchers, who found they had to take into account the different shades of subjective meaning that colored their subjects' views of the world.
Much of this discordance can be attributed to a) heterogeneity of ENMs from batch to batch; b) inherent difficulties of interlaboratory comparisons; c) agglomeration of particles, which often changes toxicity; d) method and duration of dosing and dose level; and e) method of ENM manipulation prior to testing.
The table also reveals the difficulty of direct comparison of the results due to the different models, data and GPU devices.
One major difficulty of the comparison of our results with results from these studies is the definition of MetS used.
Moreover, difficulty of direct comparison of radiographic appearance with histological finding and variation in histological criteria of gastritis had made significance of the AG patterns unknown to pathologists as well as radiologists.
Whereas, these studies usually applied the CIMPs comprising various gene patterns different among studies, which might lead to the difficulty of direct comparison and could generate more heterogeneity if the data were pooled.
Maternal morbidity was found to be the most frequently applied indicator regarding fatal/undesirable outcome (not shown in table).> Some variability was identified in indicators ostensibly measuring the same intervention, highlighting the difficulties of cross-site comparison in maternity care.
