Pure Appl. Chem., 1993, Vol. 65, No. 6, pp. 1241-1248
http://dx.doi.org/10.1351/pac199365061241
Possible evolutionary relationships in a signal transduction system
First page:

Pure Appl. Chem., 1993, Vol. 65, No. 6, pp. 1241-1248
http://dx.doi.org/10.1351/pac199365061241