Los puntos clave no están disponibles para este artículo en este momento.
A member of the Cochrane Nursing Care Field (CNCF) 1School of Basic Medical Sciences, Evidence-Based Medicine Centre of Lanzhou University, Lanzhou, Gansu, China This is a summary of a Cochrane Review. The full citation and the names of the researchers who conducted the Review are listed in the Reference section below.
Chunhu Shi (Sun,) studied this question.