All
 D27 Chemical Actions and Uses D020164 +
 D27.720 Specialty Uses of Chemicals D020313 +
 D27.720.470 Laboratory Chemicals D019995 +
 D27.720.470.530 Molecular Probes D015335 +
 D27.720.470.530.600 Nucleic Acid Probes D015341 +
 D27.720.470.530.600.150 Antisense Elements (Genetics) D016375 +
 D27.720.470.530.600.150.640 Oligonucleotides, Antisense D016376 +
 D27.720.470.530.600.150.640.640 Oligodeoxyribonucleotides, Antisense D020319 
 D27.720.470.530.600.150.640.645 Oligoribonucleotides, Antisense D020320