This approach relies mostly on the existence of a longitudinal study that spans longer periods from which events such as migrations, deaths, etc. that are likely to occur in the long term can be tracked.
In addition, the existence of a recent statistical study shedding light on the issue [6], indicates that the question itself is infamous.
We obtain by superposition the existence of a solution, by studying two related mixed problems, whose solutions exist due to the results proved for the Cauchy problem in a previous paper and for the boundary value problem in the first part of this paper.
Further it has highlighted the existence of a gap between studies at global/continental/national level and those at local level in term of policy measures and adopted assessment tools.
In spite of the existence of a series of studies describing ALDH expression in human CB [ 4, 6, 8, 10], peripheral blood stem cells [ 3] and even acute myeloid leukemia (AML) BM cells [ 1] data aiming to characterize normal BM ALDH+ cells are still limited to a few recent reports [ 9, 11].
The objectives of this systematic review were to assess the effectiveness of PRP in the healing of tendon, ligament and articular lesions in equine and human patients, to compare the results from clinical and experimental studies in both species, and to verify the existence of a relationship between the study designs and results of clinical trials.
However, previous studies have shown the existence of a similar bias when studying adjectives and their negations [38].
In Section 4, we study the local stability and the existence of a Hopf bifurcation through the study of associated characteristic equations.
Finally, tertiary prevention with anti-HBV treatments is controversial, due to the existence of a few, methodologically flawed studies.
In this paper, the problem of the existence of a periodic solution is studied for the second order differential equation with a singularity of repulsive type x"(t)+fbigl(x t bigr)x'(t -gbigl(x(t -gbigl+varphi(t)x t)=h(t), where (g(x)) is singular at (x=0), φ and h are T-periodic functions.
The type of non-RCT considered also differed: IQWiG's precondition for inclusion was the existence of a concurrent control group; studies with a historical control group were excluded, as systematic bias may arise from time trends in the outcomes of study participants [ 38].
