Retractors, Eye

http://linkedlifedata.com/resource/umls/relation/R13386289, http://linkedlifedata.com/resource/umls/relation/R111957321, http://linkedlifedata.com/resource/umls/relation/R112034211, http://linkedlifedata.com/resource/umls/relation/R111949360, http://linkedlifedata.com/resource/umls/relation/R111950539, http://linkedlifedata.com/resource/umls/relation/R111955994, http://linkedlifedata.com/resource/umls/relation/R111951285, http://linkedlifedata.com/resource/umls/relation/R111958259, http://linkedlifedata.com/resource/umls/relation/R111958519, http://linkedlifedata.com/resource/umls/relation/R111958986, http://linkedlifedata.com/resource/umls/relation/R129346867, http://linkedlifedata.com/resource/umls/relation/R111949845, http://linkedlifedata.com/resource/umls/relation/R111949949, http://linkedlifedata.com/resource/umls/relation/R111955448, http://linkedlifedata.com/resource/umls/relation/R111952513, http://linkedlifedata.com/resource/umls/relation/R111950170, http://linkedlifedata.com/resource/umls/relation/R111955860, http://linkedlifedata.com/resource/umls/relation/R55881239, http://linkedlifedata.com/resource/umls/relation/R03008682, http://linkedlifedata.com/resource/umls/relation/R71548955, http://linkedlifedata.com/resource/umls/relation/R71565032, http://linkedlifedata.com/resource/umls/relation/R71600016, http://linkedlifedata.com/resource/umls/relation/R71613309, http://linkedlifedata.com/resource/umls/relation/R71526156, http://linkedlifedata.com/resource/umls/relation/R71601071, http://linkedlifedata.com/resource/umls/relation/R55881241, http://linkedlifedata.com/resource/umls/relation/R71556238, http://linkedlifedata.com/resource/umls/relation/R71626093, http://linkedlifedata.com/resource/umls/relation/R55807148, http://linkedlifedata.com/resource/umls/relation/R71605464, http://linkedlifedata.com/resource/umls/relation/R03190154, http://linkedlifedata.com/resource/umls/relation/R71646888, http://linkedlifedata.com/resource/umls/relation/R71533741, http://linkedlifedata.com/resource/umls/relation/R71550912, http://linkedlifedata.com/resource/umls/relation/R71586599, http://linkedlifedata.com/resource/umls/relation/R55769824, http://linkedlifedata.com/resource/umls/relation/R71610203, http://linkedlifedata.com/resource/umls/relation/R71659825, http://linkedlifedata.com/resource/umls/relation/R71586250, http://linkedlifedata.com/resource/umls/relation/R71663062, http://linkedlifedata.com/resource/umls/relation/R55881240, http://linkedlifedata.com/resource/umls/relation/R111949007, http://linkedlifedata.com/resource/umls/relation/R111952447, http://linkedlifedata.com/resource/umls/relation/R111956568, http://linkedlifedata.com/resource/umls/relation/R111958474, http://linkedlifedata.com/resource/umls/relation/R111956452, http://linkedlifedata.com/resource/umls/relation/R111956933, http://linkedlifedata.com/resource/umls/relation/R111946927