As far as we are aware, there are only two publications, including ours, that assess long-term survival in relation to provider volumes [ 26, 48].
To the best of the authors' knowledge, there are only two publications in which the range of the subjects' BMI is presented.
To date, there are only two publications on the prevalence of undiagnosed DSPN in patients with known type 2 diabetes (13, 14).
In spite of these reports of PBDE toxic effects and of the known structural similarity of PBDE and PCB, there were only two publications between 1980 and 2001 – one in 1994 [ 59] and another in 1996 [ 60] (Fig 1B).
In fact to date, there has been only one publication on mice performing this task, which was not validated in terms of vigilance [34].
There were only three publications working with biocides, which clearly shows that this topic is largely neglected by research.
The phylogenetical analysis showed that it belongs to Enterobacter sp. To date, according to our state of knowledge, they are only four publications dealing with PHA-producing Enterobacter strains (Chen et al. 2010; Samrot et al. 2011; Arumugam et al. 2014; Naheed and Jamil 2014).
There were only three publications which specified that the service was for women prior to pregnancy [ 15, 20, 29].
As far as we know, there is only one publication that compares the views of all relevant women, namely, women above a defined age with a specified minimum number of children who delivered by CS with and without the option of having a concomitant TO [9].
To our knowledge there have been only five other publications investigating the role of miRNA in MS [26] [30], four of which focus on the immune system in MS and the other on active and inactive central nervous system lesions.
