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. 2009 Jan 13;6(1):246–258. doi: 10.3390/ijerph6010246

Table 2.

Greatest challenges pre- and post-implementation*

Pre-implementation Post-implementation
Greatest challenge responses (n=76) (n=71)
Enforcement 55% 51%
Communication and/or education 26% 35%
*

Some respondents reported more than one greatest challenge.