Complex sentence: In addition, Granpeesheh, who was Lovaas' senior supervisor at his clinic, took part in his famous 1987 study which documented that 9 of 19 children with autism obtained early, intensive ABA therapy and had acquired typical academic skills and were placed in regular classrooms.
Split into simpler sentences: In addition, Granpeesheh, who took part in his famous 1987 study, was Lovaas' senior supervisor at his clinic. The study documented that 9 of 19 children with autism who obtained early, intensive ABA therapy had acquired typical academic skills and were placed in regular classrooms.