Background Injecting drug use is an increasingly important cause of HIV transmission in
most countries worldwide. Our aim was to determine the prevalence of injecting drug use …

The GRADE (Grades of Recommendation, Assessment, Development, and Evaluation)
approach provides guidance to grading the quality of underlying evidence and the strength …

While grading the strength of recommendations and the quality of underlying evidence
enhances the usefulness of clinical guidelines, the profusion of guideline grading systems …

Summary Background The Millennium Declaration in 2000 brought special global attention
to HIV, tuberculosis, and malaria through the formulation of Millennium Development Goal …

Encapsulation of drugs within nanocarriers that selectively target malignant cells promises to
mitigate side effects of conventional chemotherapy and to enable delivery of the unique drug …

Background Remarkable financial and political efforts have been focused on the reduction
of child mortality during the past few decades. Timely measurements of levels and trends in …

Despite the ubiquity of ferrihydrite in natural sediments and its importance as an industrial
sorbent, the nanocrystallinity of this iron oxyhydroxide has hampered accurate structure …

Technology abandonment may have serious repercussions for individuals with disabilities
and for society. The purpose of this study was to determine how technology users decide to …

Background A number of approaches have been used to grade levels of evidence and the
strength of recommendations. The use of many different approaches detracts from one of the …

Abstract “Four out of five new firms fail within the first five years.” This statement has been
made so many times that most people believe it is true. But it isn't. In fact, using a relatively …