Kenhub doesn't present medical information. You could learn more about our material development and assessment expectations by looking through our articles top quality suggestions.Chúng ???c v?n hành b?ng cách s? d?ng m?t liên k?t c? h?c chuy?n ??ng d?t khoát và ??n gi?n, s? ???c g?n tr?c ti?p vào màng b?m c?a máy b?m. Máy b?m c? h?c th??