[On the interaction of 2 conjugated systems across a hydrogen bond].
D000225:Adenine; D003596:Cytosine; D006147:Guanine; D006859:Hydrogen; D006860:Hydrogen Bonding; D013941:Thymine
D006147:Guanine; D006859:Hydrogen; D003596:Cytosine; D000225:Adenine; D013941:Thymine
ADENINE; CYTOSINE; GUANINE; THYMINE