Relationship between sickness presenteeism and awareness and presence or absence of systems for return to work among workers with mental health problems in Japan: an Internet‐based cross‐sectional study

• Shotaro DokiUniversity of Tsukuba
• Shinichiro SasaharaUniversity of Tsukuba
• Shun SuzukiUniversity of Tsukuba
• Yasuhito HiraiUniversity of Tsukuba
• Yuichi OiUniversity of Tsukuba
• Kazuya UsamiUniversity of Tsukuba
• Ichiyo MatsuzakiUniversity of Tsukuba