Getting a shot at the doctor's office may become less painful in the not-too-distant future. MIT researchers have engineered a device that delivers a tiny, high-pressure jet of medicine through the skin without the use of a hypodermic needle. The device can be programmed to deliver a range of doses to various depths — an improvement over similar jet-injection systems that are now commercially available. Read more at MIT News: http://tinyurl.com/7s3sovt