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Related to Cowling rule: Clark rule
a now historical scale to determine a child's dose: that fraction of the adult dose obtained by dividing the age of the child at the nearest birthday by 24.
A method for calculation of pediatric drug dosages in which the age of the child at the next birthday is divided by 24. However, the most safe and accurate methods of pediatric dosage calculation include the weight and body surface area or both of the patient.See: Clark rule