question: What is the cause of death of director of film I Will, I Will... For Now?
context: Title: Norman Panama
  Passage: Norman Kaye Panama (April 21, 1914 – January 13, 2003) was an American screenwriter and film director born in Chicago, Illinois. He collaborated with a former schoolfriend, Melvin Frank, to form a writing partnership which endured for three decades. He also wrote gags for comedians such as Bob Hope's radio program and for Groucho Marx. The most famous films he directed were "Li'l Abner" (1959), the Danny Kaye film "The Court Jester" (1956), and the Bob Hope film " How to Commit Marriage" (1969). He wrote "Mr. Blandings Builds His Dream House" (1948), "Road to Utopia" (1946), and "The Court Jester," among other movies. He won an Edgar Award for "A Talent for Murder" (1981), a play he co-wrote with Jerome Chodorov. Panama continued to write and direct through the 1980s. He died in 2003 in Los Angeles, California, aged 88, from complications of Parkinson's disease.
  Title: I Will, I Will... for Now
  Passage: I Will, I Will... for Now is a 1976 American romantic-comedy film directed by Norman Panama. It stars Elliott Gould and Diane Keaton. It was Panama's last feature as director.
answer: Parkinson
citations: I Will, I Will... for Now Norman Panama