Article in English: To start, find a firm surface. Lay the infant on the firm surface with their face down. Make sure the infant's head is turned so they can breathe. Kneel near the infant's feet. You can also place the infant on your lap face down. Use the heel of your hand. Deliver five quick blows to the area between the infant's shoulder blades. Hopefully, an object will pop out quickly. With an infant, be firm in the blows but do not use harsh force. You do not want to press too hard, as this could hurt an infant. Gravity combined with back blows can provide adequate force to dislodge the object. If no object pops out, turn the infant over. Support their head with your hand, keeping the head slightly lower than the feet. Place your fingers on the lower half of the infant's breastbone. Make sure to keep your hand in the middle of your infant's breastbone and not to one side of another. Press down five times in a series of chest thrusts. If you see the object become dislodged, stop giving chest thrusts. Immediately call 9-1-1 if the object does not become dislodged. As you wait, repeat the back blows and the chest thrusts. Repeating the steps may cause the object to become dislodged while you're waiting.

Summary in Vietnamese:
Giữ trẻ sơ sinh nằm sấp. Vỗ vào lưng trẻ 5 cái nhanh. Lật trẻ lại. Ấn ngực trẻ  5 lần. Gọi dịch vụ cấp cứu nếu dị vật không bị tống ra ngoài.