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The Relationship between exposure duration and sulfur dioxide-induced brochoconstriction in asthmatic subjects

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      <subfield code="a">The Relationship between exposure duration and sulfur dioxide-induced brochoconstriction in asthmatic subjects</subfield>
      <subfield code="c">Donald H. Horstman... [et al.]</subfield>
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      <subfield code="a">The major objective of this study was to determine the minimal duration of exposure to 1.0 ppm S=2 sufficient to elicit bronchoconstriction significatly greater than that observed with exposure to clean air (CA). A secondary objective was to describe the postexposure temporal pattern of SO2-induceed bronchoconstriction</subfield>
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      <subfield code="a">Horstman, Donald H.</subfield>
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      <subfield code="a">American Industrial Hygiene Association journal</subfield>
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      <subfield code="t">American Industrial Hygiene Association journal</subfield>
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      <subfield code="g">Vol. 49, nº 1, January 1988 ; p. 38-47</subfield>
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