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| internal urethral opening (ostium urethrae internum); internal orifice of urethra (ostium urethrae internum); internal urethral orifice (ostium urethrae internum); orificium urethrae internum (ostium urethrae internum) | |||
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| internal urethral opening (ostium urethrae internum); internal orifice of urethra (ostium urethrae internum); internal urethral orifice (ostium urethrae internum); orificium urethrae internum (ostium urethrae internum) | |||