X-PLOR for 3D macromolecular structure determination. Readers: 1300 (0.1%) {0%} Mesgs per month/day: 28/1 {9%} Crossposting: 0% {8%} Megs per month/day: 0.0/0.000 {9%} Sites reciving this Group: 12% Cost ratio ($US/month/rdr): 0.00