Serum levels of matrix metalloproteinase-9, tissue inhibitors of metalloproteinase-1 and their ratio are associated with impaired lung function in the elderly: a population-based study.
Olafsdóttir
Inga S
IS
Department of Medical Sciences: Respiratory Medicine & Allergology, Uppsala University Hospital, SE 751 85 Uppsala, Sweden. inga_sif.olafsdottir@medsci.uu.se
Janson
Christer
C
Lind
Lars
L
Hulthe
Johannes
J
Gunnbjörnsdóttir
María
M
Sundström
Johan
J