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1 items of data are available, covering 1 participants. Some values have special meanings defined by Data-Coding 819.
There are 1 distinct values.
Counts of participants/items last updated 20 May 2022.
Date of the first occurrence of any code mapped to 3-character ICD10 P27. The code corresponds to "chronic respiratory disease originating in the perinatal period". Note that events which were apparently before birth were omitted when constructing this data field.