Dòu Cái 竇材 (Southern Sòng physician, fl. Shàoxīng era 1131–1162), author of the Biǎnquè xīnshū 扁鵲心書 (KR3er020, dated Shàoxīng 16 = 1146). Dòu’s biographical detail is sparse; the work’s preface narrates that he received his clinical training in an unbroken oral lineage from a Guānzhōng 關中 old physician and that he tested the resulting doctrine over forty years of personal medical practice. He is the principal pre-Míng advocate of direct-moxibustion-of-massive-quantities (大壯艾灸) as the primary therapeutic modality of all serious medicine, an idiosyncratic position that placed him outside the Sòng medical mainstream and ensured that his work circulated only marginally in the SòngYuán. The work became known principally through the late-Míng Wànlì 萬曆 recension associated with Hú Wénhuàn 胡文煥 and Sūn Yīkuí 孫一奎. No CBDB record. Lifedates undatable.