A course of cognitive behavior therapy can beas effective, if not more so, than drug therapy and without the side effects, in helping the elderly to overcome insomnia.
A. as effective, if not more so, than drug therapy and without the side effects, in helping the elderly to overcome insomnia.wordy and idiomatically incorrect
B.more effective than drug therapy and without the side effects, in helping the elderly to overcome insomnia
C. at least as effective in helping the elderly overcome insomnia
...
A. as effective, if not more so, than drug therapy and without the side effects, in helping the elderly to overcome insomnia.wordy and idiomatically incorrect
B.more effective than drug therapy and without the side effects, in helping the elderly to overcome insomnia
C. at least as effective in helping the elderly overcome insomnia
...
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