Future research should investigate this conjecture within a prospective design to establish temporality.
Third, since the nature of the present study design is, although nested within a prospective study, rather observational and cross-sectional, no causal interference is possible.
We used a case control design nested within a prospective cohort of patients with baseline eGFR 30 60 ml/min per 1.73 m2.
To investigate clinical feasibility and toxicity of combined photon and carbon ion radiotherapy in locally advanced adenoid cystic carcinomas (ACC) within a prospective Phase I/II trial.
Within a prospective study, patients were attended by means of specific consultation with care upon request and telephone care, with the possibility of programmed admission.
Within a prospective research design, the placement histories of 70 Norwegian children were followed through eight years, at several time points.
To investigate the influence of location and preparation design on the survival and complication rate of metal-free polymer crowns within a prospective clinical study.
District scale targeting is concerned with identifying a mineral camp ∼60 km × 60 km in size within a prospective region or province ∼1000 km × 1000 km in size.
The primary goal of this study was to evaluate the incidence and characteristics of post-traumatic headache PTH) attributed to mild brain injury in military personnel in Iran within a prospective and observational study design.
All patients were investigated within a prospective study evaluating the diagnostic value 18F-FET PET in cerebral gliomas which was approved by the university ethics committee and federal authorities (study no. 2438, University of Düsseldorf).
In a cross-sectional design nested within a prospective longitudinal cohort study, posttraumatic stress symptoms and quality of life were assessed in family members of CCI patients (n = 83, aged between 18 and 72 years) up to 6 months after transfer from ICU at acute care hospital to post-acute rehabilitation.
