TY - RPRT TI - Functionally determined invalidism in chronic asthma. AU - K H Fross AU - J F Dirks AU - R A Kinsman AU - N F Jones PY - 1980 DO - 10.1016/0021-9681(80)90073-9 UR - https://pubmed.ncbi.nlm.nih.gov/7380982/ ID - 7380982 ER -