[Tư duy táºn dụng] [东频效施] [Cảnh đồi má» xám] [tạng phế] [phương pháp cá heo] [giáo trình phưÃ] [garatentor ausmessen] [Back blows and abdominal thrusts should be used when: The casualty is pregnant and severely obstructed The casualty is conscious, severely obstructed and not pregnant The casualty is unconscious and severely obstructed The casualty is conscious and mildly obstructed] [Sức mạnh cá»§a sá»± khÃch lệ] [xúc xắc]