TI - MIcrobubbles show promise for enhancing ultrasound signal, image, other applications PT - JOUR DP - 1989 TA - JAMA pages = {1542}, VI - 261 IP - 11 AID - 10.1001/jama.1989.03420110016002 [doi] 4100 - http://dx.doi.org/10.1001/jama.1989.03420110016002 SO - JAMA March 17, 1989 261(11):1542