Chromosome 0 (zero)

[hansonrf]

My build 37 data has 15 markers for Chromosome 0 and position 0. They have rs numbers assigned... Any ideas? I haven't yet pursued much on my own.

rs28491581
rs28357073
rs9654803
rs35408159
rs35862547
rs28760082
rs35038329
rs34064365
rs34856358
rs35005296
rs35469213
rs34673360
rs34123069
rs34852281
rs34482331