海量图书期刊资源，随时随地畅享阅读乐趣
Lichen planusA.I. Darling; H.S.M. Crabb · 1954
The gradient of mineralization in developing enamelH.S.M. Crabb; A.I. Darling · 1960
Lichen planus of the mouth with associated ulceration: A report of three casesA.I. Darling; H.S.M. Crabb · 1955