The specific details of the length of exam, contraindications and limitations, subject assessment, examination guidelines, annotation documentation, specific Doppler parameters, criteria definitions, description of probes, positioning of the subject, techniques used, fulfilment of VH criteria and pathology definitions are provided elsewhere [14].
One of the major limitations, subject to all retrospective observational analyses, is that treatment was determined by physicians and was not random.
They have tried aggressively to limit exposure to claims by setting up parishes as individual corporations, invoked the statute of limitations, subjected plaintiffs to days of grueling depositions and settled claims in secret.
Limitations: Subjects were predominantly male veterans of relatively homogeneous social class, followed prospectively for approximately one year in a clinic designed specifically to minimize barriers to care.
Supporting all this frequent drug intake limitations subjects of this study perceived that frequent consumption of analgesics is a reason for dependency, relapsing/rebound headache, adaptation and some other untoward effects.
Limitation of subject matter.
This prevalence may be over-estimated because the limitation of subjects in our study.
The potential for electrical interference from the Exhale DPU during Airway Bypass poses a potential limitation for subjects with implanted defibrillators or pacemakers and therefore, these subjects cannot participate in the study.
Due to the inherent limitations in subject recruitment and sampling, the authors had very limited ability to control for dependent variables in the quantitative analysis.
There are no limitations on subject or length.
