Reliability of the VCM1 Questionnaire when administered by post and by telephone

Author: Frost N.A.   Sparrow J.M.   Hopper C.D.   Peters T.J.  

Publisher: Informa Healthcare

ISSN: 0928-6586

Source: Ophthalmic Epidemiology, Vol.8, Iss.1, 2001-02, pp. : 1-11

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