You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Political_corruption

Context:
Corruption can also affect the various components of sports activities (referees, players, medical and laboratory staff involved in anti-doping controls, members of national sport federation and international committees deciding about the allocation of contracts and competition places).

Question:
Medical staff can affect what aspect of sports?

anti-doping controls