<chr_abbr type="reg" class="dc" expan="" cert="no">Q1-hbar</chr_abbr> b<chr_abbr type="reg" class="dc" expan="ine" cert="no">ie-hbar</chr_abbr> <chr_var letter="s" var="long">∫</chr_var>ai <chr_abbr type="reg" class="dc" expan="que" cert="no">q-hbar</chr_abbr> ci<chr_var letter="s" var="long">∫</chr_var>t tocirroit 