B生物医药大词典by MedSci
例句 /

Leiomyosarcomas are uncommon tumors, and even rarer are esophageal leiomyosarcomas.

Leiomyosarcomas are uncommon tumors, and even rarer are esophageal leiomyosarcomas.

摘要平滑肌肉瘤临床上并不常见。