# Usability study of pH strips for nasogastric tube placement

> Research article (PLoS ONE, 2017) · cited 22× · AI/ML

**Wikidata**: [openalex:W2774191723](https://www.wikidata.org/wiki/openalex:W2774191723)  
**Source**: https://4ort.xyz/entity/usability-study-of-ph-strips-for-nasogastric-tube-placement