Background. Acute pyelonephritis is a potentially severe disease for which there are few population-based studies.
急性肾盂肾炎是较少几项以人口基础研究的潜在严重性疾病之一。
In particular, a significant positive association was present in population-based studies, which had lower response rates in cases and controls, but not in hospital-based studies.
特别是在以人群为基础的研究中有显著正相关性，在病例和对照中相关性较低，但在住院病人研究中这种相关性较高。
BACKGROUND. To the authors' knowledge, few population-based studies to date have considered the serial use of colorectal cancer screening tests, which are usually recommended at specific intervals.
据作者所知，现在很少有以人群为基础的关于结直肠癌扫描试验连续应用的研究，而在特殊的时期，这个是被推荐的。
应用推荐