TY - RPRT TI - [Embryological study on bone conduction abnormalities with special reference to early development and ossification of the fetal stapes in Japanese]. AU - Y Masuda AU - A Oshima AU - Y Endo AU - M Kondo PY - 1969 UR - https://pubmed.ncbi.nlm.nih.gov/5259873/ ID - 5259873 ER -