A random assignment was made from 123 patients of the 149 initially recruited.
After each comparison, another random replacement was made in the same manner.
If the nearest empty space was not unique, a random choice was made.
If more than one woman was eligible in a house, a random selection was made.
A random selection was made from all adult patients scheduled for elective surgery on the day of the observation.
The computerized random selection was made within SPSS by identifying all available women and specifying the number wanted.
Drugs were randomly selected, and for each drug, a random selection was made among medical events temporally associated with new prescriptions of the drug.
Where an address was found to have multiple dwelling units, a random selection was made and a single dwelling unit was included.
If no registers existed, but only lists of facilities in a country, a random selection was made from such lists [ 29, 31, 32].
No further investigation concerning optimal variance partition between spatial trend-function and random plot effects was made at this point.
