Substance P(SP)and motilin were determined in all layer of various gut regions in developing human fetuses.

用放射免疫方法测定了不同胎龄胎儿胃肠道P物质和胃动素的含量。

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Substance P(SP)and motilin were determined in all layer of various gut regions in developing human fetuses.

用放射免疫方法测定了不同胎龄胎儿胃肠道P物质和胃动素的含量。

youdao