When you move the mouse cursor off the life span stage, the window will close. The hand becomes a pointer when it is not over an active area on the screen. As you become familiar with browsing the WWW, you may find additional course-related sites. This is from Medscape. If you have not registered, you will need to do so.
Registration is free.
This is from Medscape. If you have not registered, you will need to do so. Registration is free. This is part of Some Common Medical Myths which makes fun reading if you have the time. Time for a Second Look .