... habitation. The cause of the disease onset relates to a house, symptoms occurwithin the house, symptoms are less serious or dis-appear when the patient is away from the house, and when the patient ... that SHS and MCSas the same, because they have been confused by the media.29)Asystemic literature review was con-ducted to confirm and extend the U.S.A. case defini-tion of MCS. The results ... Sanitation in Buildings”;however, small buildings and individual residencesare not included, and the substances in indoor air and their concentrations from the 1970s to 2000 inJapan have been summarized...