Constipation at its Worst

A condition in which stool becomes hard, dry, and difficult to pass, and bowel movements don’t happen very often. Other symptoms may…

Comparison of a variable factor to one with a fixed value (e.g., comparison of gene expression to a gene with constant…

Predefined values for some elements (fields) on a data entry workform.

A response that indicates a state of continual concern.

Continually recurring or continuing without interruption.

Groups of scientists who link their expertise and resources in collaborative efforts to address important questions of shared interest.