PHi everyone. I have read articles on the definition (old and new) of BPD but I am still unclear in certain aspects. A 26 week old preterm infant needed supplemental oxygen for more than 28 days but was successfully weaned of this before 36week postmenstrual age; does this baby meet criteria for BPD? Or is it mandatory for the 36 PMA criteria to be met before considering BPD at all? Thank you