Trans erasure describes systematic, individual, or organizational discrimination against transgender people. Informational erasure and institutional erasure were identified in a 2009 Canadian study of health care for transgender people as being the most prominent barriers to care. Informational erasure involves a lack of knowledge, or a perceived lack of knowledge, about transgender health care. This may manifest itself in health care providers being more reluctant to treat transgender clients because of an unwillingness to find information about their specific population. Institutional erasure describes policies that do not accommodate transgender identities or bodies. For example, forms, texts, or prescriptions may refer to a person by an unpreferred name or pronoun. Issues of erasure may hinder a transgender person's ability to find speech therapy services, or may affect the person's comfort with speech therapy.