Zhīyǔ qiáokè 芝嶼樵客 (“the Woodcutter of Zhīyǔ Islet”) is the studio-name (hào) of the Qīng-period author of the paediatric treatise Érkē xǐng 兒科醒 (KR3ej008). The preface to the work, by his teacher Huáyáng shānrén 華陽山人, identifies the author only as the teacher’s disciple (yǔ dìzǐ Zhīyǔ 予弟子芝嶼). The full personal name has not been securely identified in modern scholarship. Mid-to-late-Qīng dating is established by the work’s vocabulary, its references to the Dòuzhěn zhèngzōng 痘疹正宗, and (in the editorial principles) to organised mass zhòng dòu 種痘 variolation programmes such as the Bóài táng 博愛堂. No CBDB record under this hào.