Complex sentence: Mervyn Wilfred Susser (26 September 1921-14 August 2014) was a South African activist, doctor and epidemiologist, whose career was closely interwoven with that of his wife, Zena Stein.
Split into simpler sentences: Mervyn Wilfred Susser (26 September 1921-14 August 2014) was a South African activist, doctor and epidemiologist. His career was closely interwoven with that of his wife, Zena Stein.