Publication data are based on PubMed entries. A, comparison of volume of all vitamin E (diamond) research and tocotrienol research (square); B, time-dependent changes in the volume of vitamin E research as a whole; C, time-dependent changes in the volume of tocotrienol research; D, tocotrienol (TCT) publications as a percent of total vitamin E publications reported; E, percent increase in tocotrienol publications and that of vitamin E as a whole over time; F, trends in NIH funding for tocotrienol research and for vitamin E research as a whole. Based on hits in the Computer Retrieval of Information on Scientific Projects (CRISP) database.