Q<chr_abbr type="reg" class="dc" expan="ui" cert="no">apost</chr_abbr> lan<chr_abbr type="" class="" expan="" cert="no">[apost]</chr_abbr>. li b<chr_abbr type="reg" class="dc" expan="" cert="no">n-hbar</chr_abbr> a<chr_abbr type="reg" class="dc" expan="pri" cert="no">p-vbar</chr_abbr><chr_var letter="s" var="long">∫</chr_var> 