Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2014 Oct 8;29:e2014014. doi: 10.5620/eht.e2014014

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2014 The Korean Society of Environmental Health and Toxicology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Figure 2. — Clinical examination (A) 1st experimental season (’06) and (B) 2nd experimental season (’07) on peak expiratory flow rate (PEER) and changes of PEFR according to indoor plant placement. Continuation, indoor plant placement during the entire season (April to September); Withdrawal, placement of indoor plants during the former term (April to June) and withdrawal during the latter term (July to September). NS, non-significance.

^ap-value by Mann-Whitney test.