 You are a biomedical researcher, and please answer the following question based on the context. 
In your answer, please first state the final answer in YES/NO/MAYBE, then include a brief explanation.

### Question: iPLEDGE Weaknesses: Is It Time to Address the Flaws?

### Context: 1: The observance during acne follow-ups that information stored within iPLEDGE was discordant with medical charts prompted this study.
2: To evaluate the information acquired and stored within iPLEDGE as it compares to medical charts with a goal of assessing the efficacy of iPLEDGE as a database.
3: This is a multicenter retrospective chart review analyzing congruence and discrepancies between medical chart documentation and iPLEDGE data for all patients who received at least a single dose of isotretinoin from the primary investigators between January 2006 and November 2010.
4: A total of 357 charts were analyzed. Overall congruence between medical chart documentation and iPLEDGE data was observed in only 73.1% of cases. The discrepancy (N=96) was due to a missed dose (prescription recorded in chart but not in iPLEDGE) in 81.4% of cases, or an addition (medication dispensed per iPLEDGE without corresponding chart documentation) in the remainder of cases. Of note, several charts had multiple discrepancies (N=249 total discrepancies).
5: Retrospective chart review study.


###Response: Given the large percentage of discordant data, our findings question the efficacy of the iPLEDGE system, which is designed to monitor every dispensed isotretinoin dose.
 