TY - RPRT TI - Gradually developing aphasia in children. A diagnostic problem. AU - I L Humphrey AU - R Knipstein AU - E R Bumpass PY - 1975 DO - 10.1016/s0002-7138(09)61464-3 UR - https://pubmed.ncbi.nlm.nih.gov/1184859/ ID - 1184859 ER -