He willingly made films based on literary works that dealt with people fighting against incurable diseases such as "Kojima no haru" (Spring on a Small Island) and "Kokotsu no hito" (The Twilight Years), but he was later often criticized for reproducing incorrect information and treatments verbatim from the original.
『小島の春』や『恍惚の人』など、難病と戦う人々を扱った文芸作品も進んで映画化したが、誤った知識や対処法を原作どおりに描いたために、後年たびたび批判の対象となる。