In complex spatial models, as used to predict the climate response to greenhouse gas emissions, parameter variation within plausible bounds has major effects on model behavior of interest. Here, we ...

Biological variation represents the natural fluctuations in laboratory test results that occur both within an individual over time and among different individuals. In the context of coagulation ...

Steady-state levels of HIV-1 viraemia in the plasma vary more than a 1000-fold between HIV-positive patients and are thought to be influenced by several different host and viral factors such as host ...