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The same model selection procedure as before was followed, starting with the same seven explanatory variables

When youve been toiling through the sucking ooze, with submerged roots and branches grabbing at your ankles, dry solid ground feels almost miraculous

The topic, as they puffed away: France's new law banning smoking in public places such as schools and offices, and an even broader prohibition, set for next year, covering bars, restaurants and cafes

The planned interim analysis, conducted when 124 participants had been randomised, suggested 1122 additional participants needed to be randomised for sufficient power to detect an effect