| http://www.w3.org/ns/prov#value | - Subjects received free PAP equipment, including heated humidification, interfaces, and tubing, the morning after the titration polysomnogram.A phone call was made 48 h after initiation to assess use, provide support, and identify and troubleshoot side effects and barriers to use, such as nasal congestion, eye irritation, skin breakdown, equipment problems, or behavioral issues.
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