Which of the following statements is NOT true?
Tsien Hsue--shen married Jiang Ying, the daughter of Chinese nationalist leader Chiang Kai-shen.
Tsien Hsue-shen has made a contribution to the Space Shuttle.
Tsien Hsue-shen was interested in traditional Chinese medicine, qigong and "special human body functions" in his later life.
Tsien Hsue--shen got a doctor's degree in 1939.