Helen Booth, Christine Pollitt, E Christina Jessen, David J Hendrick, Andrew J Cant
Booth H, Pollitt C, Jessen E C, Hendrick D J, Cant A J.
When is referral of Heaf test positive schoolchildren worth while? Prospective study
BMJ 1996; 313 :726
doi:10.1136/bmj.313.7059.726