أرسل هذا في رسالة قصيرة: Estimating the timing of mother-to-child transmission of the human immunodeficiency virus type 1 using a viral molecular evolution model

 _    _      ___      ______     ___     _    _   
| \  / ||   / _ \\   /_____//   / _ \\  | |  | || 
|  \/  ||  | / \ ||  `____ `   / //\ \\ | |/\| || 
| .  . ||  | \_/ ||  /___//   |  ___  |||  /\  || 
|_|\/|_||   \___//   `__ `    |_||  |_|||_// \_|| 
`-`  `-`    `---`    /_//     `-`   `-` `-`   `-` 
                     `-`