American elm (Ulmus americana) is a native tree that has had a wide range from the entire eastern states through the Central Plains.
作者信息
Weber R W
出版信息
Ann Allergy Asthma Immunol. 2001 Feb;86(2):A7. doi: 10.1016/s1081-1206(10)62678-6.
Abstract
摘要
Weber R W
Ann Allergy Asthma Immunol. 2001 Feb;86(2):A7. doi: 10.1016/s1081-1206(10)62678-6.
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