What is the sign of "three retractions"?

von Chen, Shao-lu
Veröffentlicht in: Zhonghua er ke za zhi = Chinese journal of pediatrics (2012)

Answers to questions regarding "Experts Consensus on Principles for Diagnosis and Treatment of Diarrheal Disorders in Children"

von Chen, Shao-lu
Veröffentlicht in: Zhonghua er ke za zhi = Chinese journal of pediatrics (2011)