There are multiple definitions:

1. diastolic wall strain(English)

   • used as index of LV distensibility, and calculated as (PWs − PWd)/PWs, where PWs is the posterior wall thickness at end-systole and PWd the posterior wall thickness at end-diastole
   • HFpEF, TDI
   • Cardiology, Ratio-based metric
   • https://doi.org…urheartj/ehs135

2. drinking water system(English)

   • BPA, EOC, IDMS, GAC, RE
   • Environment, Pollution and health, Toxicology
   • https://doi.org…env.2011.01.010

3. Dandy–Walker syndrome(English)

   • DWM, VH
   • Congenital disorders, Brain (dys)function
   • https://doi.org…64239-4.00015-1