For explanation of each study and to verify the time intervals for each visit number, please reference each individual study page which can be found by browsing EPPT studies.

• Serum, Plasma, and Tissue Specimens by Individual Study (PDF - 343 KB)
  The individual specimen tables detail the availability of various types of specimens for each study by visit number. Specimen availability is also detailed by questionnaire availability and basic demographics.
• Summary of Specimens across All Studies (PDF - 431 KB)
  The summary specimen tables detail the availability of various type of specimens across all studies by visit number (see individual study for information on corresponding time intervals to each visit number). Specimen availability is also detailed by study, cancer site and agent.