What type of details about gunnar nilsson  can be gathered from the following bio?  Bio: gunnar nilsson -lrb- 20 november 1948 -- 20 october 1978 -rrb- was a swedish racing driver , born in helsingborg . before entering formula one , he won the 1975 british formula three championship . nilsson entered 32 formula one grand prix races , qualifying for all of them . he won once , the 1977 belgian grand prix at zolder while driving for team lotus . after losing his lotus seat , he signed for arrows , but was later diagnosed with testicular cancer which meant he could n't drive the car , however he did compete in three international race of champions -lrb- iroc -rrb- races in 1977 . he had two sixth-place finishes and a fifth-place finish . as soon as the cancer was determined to be terminal , he created the gunnar nilsson cancer foundation . he died in october 1978 . gunnar nilsson is buried in pålsjö cemetery in helsingborg , sweden , close to his parents arvid and elisabeth nilsson .
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