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Amplification and sequencing strategy for the serotonin1B (5-HT1B) receptor gene. Solid rectangle represents the coding region of 5-HT1B receptor gene. Dashed lines represent 5’ and 3’ untranslated regions. Solid line represents the PCR amplified DNA used in this study. Downward arrows indicate positions of polymorphisms or start or stop codons. Horizontal arrows indicate positions of PCR primers used in amplification and sequencing.
