保幼大全．即小兒衛(wèi)生總微論方之別名也．以其制方著論．詳審精密．故復(fù)名之曰保幼大全．予素頗有志于濟(jì)物．見醫(yī)家書．每喜蓄之．揮使鄭君和．精于小兒醫(yī)者也．與予友善．予扣其所以精于醫(yī)之故．乃出是書焉．予閱是書之異于尋常也．又扣其所以得之之故．則曰相傳農(nóng)人得之于古冢中．于是求以錄之．鄭君無難色．遂以全集授予、錄而珍藏諸笥者有年矣．間遇小兒疾．按方試之．往往得奇驗．一日．偕宣城令李君宗仁詢民瘼．會于公所．語及是書．宗仁又樂于濟(jì)物者也．即取而刊之．以廣其傳．不數(shù)月而成．噫．予竊祿明時．無補(bǔ)于吾民久矣．使一二孩提之童．得因是書而濟(jì)萬分之一于危迫倉卒之際．予之素心．寧不亦少慰乎．若其為術(shù)之高下．明者當(dāng)自得之．蓋不待予言者．姑序其所自云． 弘治己酉中秋旦京闈戊子鄉(xiāng)貢進(jìn)士寧國府通判世族濟(jì)南朱臣時佐書