Questions about UKB data

Hi:
Thank you for your innovative work. I have some questions about the data part: I saw in the article that there are 155,238 images and 155,238 Raw-SNP samples. May I ask what the UKB ID of this data is? Because I noticed that fields 21015 and 21016 do not have so many individuals.

Thanks
Looking forward to your reply

Yangfan Liu
2024.7.20