%0 Journal Article
%T Fatigue countermeasures and the use of hypnotics in aircrew
%J Aviation, space, and environmental medicine
%D 2009
%A Nicholson, A. N.
%V 80
%N 4
%P 418; author reply 418-418; author reply 418
%X <p>[Abstract unavailable]</p><p>Language: en</p>
%G en
%I Aerospace Medical Association
%@ 0095-6562
%U http://dx.doi.org/