TY - JOUR T1 - Studies in the Aetiology of Pterygium: Part 1—Pinguecula and Pterygium in Caucasians in Singapore JF - Journal of the Royal Army Medical Corps JO - J R Army Med Corps SP - 117 LP - 121 DO - 10.1136/jramc-116-03-02 VL - 116 IS - 3 AU - R. M. Youngson Y1 - 1970/08/01 UR - http://militaryhealth.bmj.com/content/116/3/117.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -