Source:http://linkedlifedata.com/resource/umls/id/C2752708
GO: The biological process whose specific outcome is the progression of a lung-associated mesenchyme from an initial condition to its mature state. This process begins with the formation of lung-associated mesenchyme and ends with the mature structure. Lung-associated mesenchyme is the tissue made up of loosely connected mesenchymal cells in the lung. [GOC:dph, GOC:mtg_lung]