| The cross-sectional area, or volume, of bone increases with age and training. |
| The data for this analysis come from a random sample, cross-sectional survey of Iowa soybean fields. |
| I concluded that the building's smallest cross-sectional area would have to be located just upwind of the living area and not at the exit opening. |
| The authors estimate a cross-sectional wage equation for a set of developing countries for the 1973-1990 period. |
| Since the sample isn't literally being sliced, we can see cross-sectional views of living cells, tissues, and organisms without harm. |
| These values are reasonable considering that the data used in the analysis are cross-sectional. |
