637 A double-blind, placebo-controlled study of safety and efficacy of atrovent nasal spray versus placebo in patients with common cold
1991 ◽
Vol 87
(1)
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pp. 299
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1992 ◽
Vol 90
(6)
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pp. 1076-1082
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2011 ◽
Vol 34
(8)
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pp. 868-877
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2018 ◽
Vol 21
(11)
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pp. 1120-1128
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2009 ◽
Vol 60
(3)
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pp. AB181
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2006 ◽
Vol 18
(6)
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pp. 527-533
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