%0 Journal Article
%T Certification in occupational health: philosophy, implication, and mechanism. 1
%J American journal of public health
%D 1966
%A Magnuson, H. J.
%V 56
%N 7
%P 1115-1119
%X <p>[Abstract unavailable]</p>
%G 
%I American Public Health Association
%@ 0090-0036
%U http://dx.doi.org/