PT - JOURNAL ARTICLE AU - Arnold Sorsby AU - G. R. Fraser TI - Statistical Note on the Components of Ocular Refraction in Twins AID - 10.1136/jmg.1.1.47 DP - 1964 Sep 01 TA - Journal of Medical Genetics PG - 47--49 VI - 1 IP - 1 4099 - http://jmg.bmj.com/content/1/1/47.short 4100 - http://jmg.bmj.com/content/1/1/47.full SO - J Med Genet1964 Sep 01; 1