# Two‐part hidden Markov models for semicontinuous longitudinal data with nonignorable missing covariates

> Research article (Statistics in Medicine, 2020) · cited 12× · AI/ML

**Wikidata**: [openalex:W3007936654](https://www.wikidata.org/wiki/openalex:W3007936654)  
**Source**: https://4ort.xyz/entity/twopart-hidden-markov-models-for-semicontinuous-longitudinal-data-with-nonignorable-missing-covariates