GENETIC DISORDERS SOURCEBOOK: BASIC CONSUMER HEALTH INFORMATION ABOUT HEREDITARY DISEASES AND DISORDERS, INCLUDING CYSTIC FIBROSIS, DOWN SYNDROME, HEMOPHILIA, HUNTINGTON'S DISEASE, SICKLE CELL ANEMIA, AND MORE; FACTS ABOUT GENES, GENE RESEARCH AND THERAPY, GENETIC SCREENING, ETHICS OF GENE TESTING, GENETIC COUNSELING, AND ADVICE ON COPING AND CARING; ALONG WITH A GLOSSARY OF GENETIC TERMINOLOGY AND A RESOURCE LIST FOR HELP, SUPPORT, AND FUTURE INFORMATION