Percentage of errors in the discrimination test.

<p>Percentage of errors in the discrimination test.</p

Demographic characteristics of participants.

<p>Demographic characteristics of participants.</p

Co-designed process of use of hydrophilic NG-tube and pH strips to check the tube position.

<p>Co-designed process of use of hydrophilic NG-tube and pH strips to check the tube position.</p

Scenario and percentage of errors in reading the strips during the discrimination test.

<p>Scenario and percentage of errors in reading the strips during the discrimination test.</p

Demographic data of interviewees.

<p>Demographic data of interviewees.</p

Summary of methods and objectives of the study.

<p>Summary of methods and objectives of the study.</p