TY - RPRT TI - Mucogingival surgery. The subperiosteal vestibule extension. Clinical results 2 years after surgery. AU - M O Schmid AU - W Mörmann AU - A Bachmann PY - 1979 DO - 10.1111/j.1600-051x.1979.tb02287.x UR - https://pubmed.ncbi.nlm.nih.gov/285079/ ID - 285079 ER -