Spectrum analysis 185 Chemistry, Analytic 23 Molecular spectroscopy 17 Autism spectrum disorders 15 Organic compounds 15 Analysis 11 Autism spectrum disorders in children 9 Autistic children 8 Child 8 Spectrum Analysis 8 Chemistry, Organic 7 Chemistry, Organic-Spectra 7 Dissertations, Academic (Ph.D) 7 SCIENCE / Spectroscopy & Spectrum Analysis 7 Thesis (Ph.D)-Physics 7 Nuclear magnetic resonance spectroscopy 6 Autism in children 5 Autistic Disorder 5 Child Development Disorders, Pervasive 5 Children with autism spectrum disorders 5 Infrared spectroscopy 5 Mass spectrometry 5 Organic chemistry 5 Physical chemistry 5 spectrum analysis 5 American poetry 4 Atomic spectroscopy 4 Behavior Therapy 4 Raman spectroscopy 4 Spectra 4