How can a lung scar be hidden in xray?

Can you die of green pee? What are ways to calm peoples fear of large asteroids? What is the role of reverse transcriptase in retroviral infections? What is high blood flow to fetus? What phobia is the fear of knees? Why does newborn baby vomit foam? Why is a woman still afraid of what her Narcissistic ex-husband might say if her 10-year marriage to her second husband would fail also? What has the best eyesight in nature? Why do girls have periods if they cant get pregnant? How do you know is people brain are weak? Does hair loss treatment improve health as well as appearance? How do all of the muscles work together to perform movement in your body? What will cause my lungs to feel like I have needles in them and I can't take a deep breathe? As a girl when your back hurt it can mean you are pregnant? What equipment is used to test for osteoporosis? Is licorice root gluten free? Does putting lip plump on your breasts make them larger? What can you see with your eyes closed? What is elvin ng blood type? How do you deal with a vindictive person?