TY - RPRT TI - The Behavior Observation Scale for Autism: initial methodology, data analysis, and preliminary findings on 89 children. AU - B J Freeman AU - E R Ritvo AU - D Guthrie AU - P Schroth AU - J Ball PY - 1978 DO - 10.1016/s0002-7138(09)61012-8 UR - https://pubmed.ncbi.nlm.nih.gov/744845/ ID - 744845 ER -