Complex sentence: While working as a researcher at the German Federal Health Office she noted many cancer drugs being evaluated in the 1950s contained sulphydryl groups, Budwig came to believe sulphydryl compounds were important to cellular metabolism and cellular respiration.
Split into simpler sentences: While working as a researcher at the German Federal Health Office she noted many cancer drugs being evaluated in the 1950s contained sulphydryl groups. Budwig believed sulphydryl compounds were important to cellular metabolism and cellular respiration.