Symptom Information: Sort according to HPO 

	Symptom Information	Symptom	Abundance	Frequency	Pubmed	Source	DB Freq
1	(HPO:0000639)	Nystagmus					555 / 7739
2	(HPO:0007875)	Congenital blindness					9 / 7739
3	(HPO:0008002)	Abnormality of macular pigmentation					20 / 7739