male/female label in metadata

[mvab]

Hello,

Some observations on metadata:

Several female-only or male-only traits have 'Females and Males' in the sex field.

• Number of children fathered: ukb-b-2227 and ukb-a-304
• Various female reproductive traits: ukb-b-1209, ukb-b-12405, ukb-b-8727 , ukb-b-9509, ukb-a-316, ukb-a-315 (not a complete list)
• Prostate cancer, e.g. ukb-b-13348 (many variations)
• Breast cancer e.g. ukb-a-55 (also many variations)