McGilveray I J, Midha K K, Skelly J P, Dighe S, Doluisio J T, French I W, Karim A, Burford R
Bureau of Drug Research, Sir F. Banting Research Centre, Tunney's Pasture, Ottawa, Ontario, Canada.
J Pharm Sci. 1990 Oct;79(10):945-6. doi: 10.1002/jps.2600791022.