Focus 1
Certain parts of the text were excerpted and adapted from the following publications and other references:

For the section describing the historical account of human space flight experiences:

Kerrod R (1990). The Illustrated History of NASA, Anniversary Edition. Gallery Books, WH Smith Publishers, Inc., New York, NY.
Space Fight: The First 30 Years (1991). NASA Publication NP-150, Washington, DC.

For the section describing the historical account of human space flight experiences and for Appendix A:

Space Physiology and Medicine (1994). Nicogossian A, Leach-Huntoon CL, Poo L (eds.), Lea & Febiger.

For the section describing the space shuttle:

Science in Orbit, The Shuttle and Spacelab Experience: 1981 - 1986 (1988). NASA Publication NP-119, Marshall Space Flight Center, Huntsville, AL.

For the section describing the Spacelab Life Sciences 1 (SLS-1 ) and Spacelab Life Sciences 2 (SLS-2) missions:

Spacelab Lift Sciences 1 (1991). Tracy McMann and Charlotte Shea (Essex Corporation, Huntsville, AL}, NASA Publication NP-120 Johnson Space Center, Houston, TX
Spacelab Life Sciences 2 (1992). NASA Publication, NASA Headquarters, Washington, DC.