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2. Delta-aminolaevulinic acid is a potent agonist for GABA autoreceptors;Brennan;Nature,1979
3. Delta-aminolaevulinic acid and amino acid neurotransmitters;Brennan;Mol. Cell. Biochem.,1981
4. Picrotoxin antagonizes responses to δ-aminolaevuliinic acid in rat jejunum and uterus;Bryson;Brit. J. Pharmacol.,1988
5. Effects of delta-aminolaevulinic acid on contractile activity in the isolated small intestine of the rabbit. Role of adrenergic receptors;Cutler;Neuro-pharmacol.,1985