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Estimated hazard ratio functions, Catalonia versus the USA. The upper row corresponds to the 
for comparison C1: Cat 1980–89 versus the USA 1975–79; the middle row corresponds to C2: Cat 1990–2001 versus the USA 1975–79; and the bottom row corresponds to C3: Cat 1990–2001 versus the USA 1990–2001. Dashed lines correspond to the 95% point-wise confidence intervals.
