1. A Preliminary Study of Elevated Alkaline Phosphatase and Cathepsin in Bronchial Aspirates of Patients with Lung Cancer and Bronchitis 
S.H. Kühn, M.Sc., M.A. De Kock, M.D., F.C.C.P. 
CHEST 
Volume 68, Issue 3, Pages (September 1975)
DOI: /chest
Copyright © 1975 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Histograms illustrating frequency distribution of number of patients with different enzyme activities in diluted bronchial aspirates. Acid phosphatase levels determined in 55 of 75 aspirates were below 200 µunol/mg of protein per minute, while 44 patients had lower values for alkaline phosphatase (<300 µunol/mg of protein per minute) and for cathespin (<300 ΔA/mg of protein per minute).
CHEST  , DOI: ( /chest )
Copyright © 1975 The American College of Chest Physicians Terms and Conditions