InfReqOpng
Mandatory
InvstgtnId
Mandatory
LglMndtBsis
Mandatory
CnfdtltySts
Mandatory
DueDt
Optional
DateOrDateTimePeriodChoice
InvstgtnPrd
Mandatory
Type: DateOrDateTimePeriodChoice
Choice
Choice
SchCrit
Mandatory
SplmtryData
Repetition (0..n)