1341
Four patients in whom pulmonary oedema developed during tocolysis with hexoprenaline are described and the aetiological factors and pathogenesis of this potentially lethal complication discussed .
 pulmonary oedema, hexoprenaline
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 pulmonary oedema, hexoprenaline