Treatment of premenstrual syndrome with Chinese medicine formula, Baixiangdan capsule: implications for neuron viability and GABAA receptor modulation in rat cortex Cloning and Expression Characteristics of cDNA Fragment of GABAa Receptor Gene in Diamondback Moth ( Plutella xylostella ) Cloning and Expression Characteristics of cDNA Fragment of GABAa Receptor Gene in Diamondback Moth ( Plutella xylostella )