LBM calculation fails for PatientSex O

[ladeirarodolfo]

An exception occur if there PatientSex is O

Not necessarily to implement but I would like to share something related to this problem
https://ejnmmiphys.springeropen.com/articles/10.1186/s40658-021-00358-7

Also whatever decision we take we should document this and which formula is being used

[salimkanoun]

I don't see a bug here, if sex is neither F or M you can't calculate LBM, so sound pretty logic to throw an exception.