BMJ

Change in physical activity from adolescence to early adulthood: a systematic review and meta-analysis of longitudinal cohort studies

Correspondence to Dr Kirsten Corder, MRC Epidemiology Unit University of Cambridge School of Clinical Medicine Box 285, Institute of Metabolic Science Cambridge Biomedical Campus Cambridge CB2 0QQ UK; ...
BMJ

Are brief interventions to increase physical activity cost-effective? A systematic review

2 Cambridge Centre for Health Services Research, Institute of Public Health, University of Cambridge School of Clinical Medicine, Cambridge, UK 3 UKCRC Centre for Diet and Activity Research (CEDAR), ...

Systematic Sampling: What It Is, Pros and Cons

Systematic sampling is straightforward and low risk, offering better control. However, it may introduce sampling errors and ...
The New England Journal of Medicine

MRI-Targeted, Systematic, and Combined Biopsy for Prostate Cancer Diagnosis

The use of 12-core systematic prostate biopsy is associated with diagnostic inaccuracy that contributes to both overdiagnosis and underdiagnosis of prostate cancer. Biopsies performed with magnetic ...
Investopedia

Systematic Sampling: What Is It, and How Is It Used in Research?

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...