1. Nebulised ipratropium bromide and salbutamol in chronic bronchitis;Lees, A.W.; Allan, G.W.; Smith, J.;BrJ Glin Pract,1980
2. Aberrant locations of central venous catheters;Dunbar, R.D.; Mitchell, R.; Lavine, M.;Lancet,1981
3. Unsuspected cerebral perfusion;Klein, H.O.; Di Segni, E.; Kaplinsky, E.;Chest,1978