Cardiac Structure Injury After Radiotherapy for Breast Cancer: Cross-Sectional Study With Individual Patient Data. JCO 36 , 2288-2296 (2018). DOI: 10.1200/JCO.2017.77.6351 ...

The data set must be sorted by the cross-section ID variable and sorted by date within each cross section. The PROC SORT step in the preceding example ensures that the CPICITY data set is correctly ...

Researchers from the Shanghai Advanced Research Institute and collaborating institutions have achieved high-precision measurements of the 27Al(γ,n)26Al photoneutron cross section using quasi ...

Cross-sectional analysis looks at data collected at a single point in time, rather than over a period of time. The analysis begins with the establishment of research goals and the definition of ...