TY - RPRT TI - Transseptal left heart catheterization: a new diagnostic method. AU - J ROSS AU - E BRAUNWALD AU - A G MORROW PY - 1960 DO - 10.1016/s0033-0620(60)80067-9 UR - https://pubmed.ncbi.nlm.nih.gov/14439147/ ID - 14439147 ER -