2473682 CHAS cloth-based hybridization array system 8 2473698 CHAS Chicago Healthy Aging Study 4 2473687 CHAS Children's Headache Assessment Scale 4 2473691 CHAS Community Health Assist Scheme 4 2473681 CHAS childhood asthma severity scale 2 2473690 CHAS Chinese Handwriting Analysis System 2 2473684 CHAS collagen-hydroxyapatite scaffold 2 2473693 CHAS Coronary Health Assessment Study 2 2473696 CHAS COVID Health Assessment Scale 2 2473694 CHAS cell type-specific histone acetylation score 1 2473697 CHAS Central Hospital Appointment System 1 2473695 CHAS Childhood Anaemia and Stunting 1 2473688 CHAS Children's Health Assessment Survey 1 2473689 CHAS Children's Hospices Across Scotland 1 2473683 CHAS collagen-hydroxyapatite biomimetic osteochondral scaffold 1 2473692 CHAS Community Health Association of Spokane 1 2473685 CHAS corporate health assessment scores 1 2473686 CHAS craniohorizontal angle in supine 1