Figure 1.
Placement of GHW was tested on 5 spots on the waterpipe and accessories: (A) Glass body, (B) Metal holder, (C) Mouthpiece, (D) Hose, and (E) Waterpipe tobacco menu
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.