https://www.selleckchem.com/pr....oducts/20-hydroxyecd
Limiting the length of catheter placement may prevent knot formation.Informal cash payments from patient to healthcare providers for services provided by the healthcare system have attracted increasing scholarly interest. However, the root and mechanism of informal payments are not well understood. This paper contributes to the literature by positing informal payments as informal institutions. We use a nationally representative longitudinal survey in 28 provinces in China to explore the root of informal payments. Our empirica
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