What causes the birth defect Amelia?

Is the best definition of epitope? Did layne stayley have arm amputated? Is high Cholesterol common? What are the muscles of the body responsible for? What foods do you eat to keep the respiratory system clean? What color is auburn's eyes? What time periods when a young man could develop post traumatic stress disorder and schizophrenia? Respiratory failure characterized by atelectasis? What muscle controls the diameter of an opening? Do women's periods hurt? What helps with morning sickness? What is the most important pigment in skin? What means fragile personality? The main organs of the muscular system? Will a baby be born with a birth defect if you are taking a diet pill and do not know if you are pregnant? What are the causes for kidney failure? Can you get infection from sewer? What muscle closes the jaw? Which structures are contained within the petrous portion of the temporal bone? Is it harmful while im pregnant to own a dog?