Inhalation of smoke by persons other than the intended active smoker.
External transcribed spacer (ETS) refers to a piece of non-functional RNA, closely related to the internal transcribed spacer, which is situated outside structural ribosomal RNAs (rRNA) on a common precursor transcript.
See moreSurgical procedure where part of the sympathetic nerve trunk is destroyed.
Division of the National Association of Educational Broadcasters.