<chr_abbr type="reg" class="dc" expan="Qui" cert="no">Q-vbar</chr_abbr> <chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr> <chr_abbr type="reg" class="ss" expan="com" cert="no">com</chr_abbr>menc<chr_abbr type="reg" class="dc" expan="" cert="no">h-hbar</chr_abbr>rent a dire 