desmosine and hydroxyproline were determined in lung tissue in seven hormone-treated fetuses that displayed distensible and stable lungs similar to term lungs [ volume of air at 40 cm h2o ( v40 ) greater than 1.5 ml/g wet weight and at 5 cm h2o ( v5 ) greater than 0.8 ml/g ] and in seven fetuses whose lungs remained nondistensible and unstable ( v40 less than 0.6 ml/g and v5 less than 0.4 ml/g ) .
C0819757
lung tissue
C0024109
lungs