TY - RPRT TI - Hytrast: experimental bronchography comparing two different formulations. AU - R G Grainger AU - R A Castellino AU - K Lewin AU - R N Steiner PY - 1970 DO - 10.1016/s0009-9260(70)80075-7 UR - https://pubmed.ncbi.nlm.nih.gov/5476803/ ID - 5476803 ER -