TY - RPRT TI - Circulatory collapse after disopyramide and practolol. AU - B O'Keeffe AU - A Hayler AU - D W Holt PY - 1979 DO - 10.1136/bmj.2.6204.1583-a UR - https://pubmed.ncbi.nlm.nih.gov/534878/ ID - 534878 ER -