of the Department of Pharmacology at the University of Pennsylvania School of Medicine, though he did spend a year as a Visiting Research Associate Professor from 1951 to 1952 for the Department of Physiology at University College London, England. Lambertsen spent the 1950s concentrating on national research needs in undersea medicine (see National Service Activities below). He again took an appointment as Professor of Pharmacology and Experimental Therapeutics at the University of Pennsylvania School of Medicine in 1962. He was also named Professor of Medicine in 1972 and Professor at the University of Pennsylvania School of Veterinary Medicine in 1976. Each of these appointments were held until 1987. In 1985, he became Emeritus Distinguished Professor of Environmental Medicine at the University of Pennsylvania. Lambertsen was the founder and director of The Environmental Biomedical Stress Data Center at the University of Pennsylvania in Philadelphia, Pennsylvania. The University of Pennsylvania's annual Christian J. Lambertsen Honorary Lecture is named for him. On May 31, 2007, the guest speaker was Professor Marc Feldmann, head of Imperial College's Kennedy Institute of Rheumatology who is recognised for his discovery of anti-TNF treatment for rheumatoid arthritis. Dr. Lambertsen was in attendance. Contributions to environmental medicine Predictive Studies Series Dr. Lambertsen's "Predictive Studies Series", spanning from 1969 with TEKTITE I to 1997, researched many aspects of humans in extreme environments. Awards University and national civilian awards and honors 1948–1953 John and Mary R. Markle Scholar in Medical Science 1965 University of Pennsylvania Alumni Award of Merit 1967 Lindback Award for Distinguished Teaching 1969 NASA Commendation 1970 Aerospace Medical Association Award 1970 Undersea Medical Society Award 1972 Marine Technology Society Award for Ocean Science and Engineering 1973 Underwater Society of America Award for Science 1974 New York Academy of Sciences Award for Research in Environmental Science 1977 Member, National Academy of Engineering 1977 Doctor of Science Honorary Degree, Northwestern University 1977 Fellow, College of Physicians of Philadelphia 1978 Distinguished Award for Individuals, Offshore Technology Conference 1979 Award in Environmental Science, Aerospace Medical Association 1979 Award for Naval Undersea Research Training, Undersea Medical Society 1980 Association of Diving Contractors Award 1984 Endowed Visiting Lectureship, Sterling Pharmaceutical Corporation 1989 Distinguished Medical Graduate Award, University of Pennsylvania 1992 Boerema Award, Hyperbaric Oxygen Research, Undersea and Hyperbaric Medical Society 1995 UDT-SEAL Association Lifetime Achievement Award 1995 Department of Defense Citation 1997 UDT-SEAL Association: Honorary Lifetime Membership 1998 US Army Special Forces tab and