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What Can Children Learn from a Free Trial of Eyeglasses Use? Evidence from a Cluster‑Randomized Controlled Trial in Rural China
Free trial is a widely used business strategy that takes advantage of information asymmetry. However, evidence on what we can learn and how rapidly we can learn from a free trial of health care is limited. This study evaluates the effect of a free trial of eyeglasses on children’s 8 items of percept...
Gorde:
| Argitaratua izan da: | Inquiry |
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| Egile Nagusiak: | , , , , , , , , , , |
| Formatua: | Artigo |
| Hizkuntza: | Inglês |
| Argitaratua: |
SAGE Publications
2020
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| Gaiak: | |
| Sarrera elektronikoa: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7691910/ https://ncbi.nlm.nih.gov/pubmed/33233981 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1177/0046958020968776 |
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