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LC-MS/MS hair analyses for all three children using 15-mm segments (each approximately 0.2 mg) along the length of the hair from proximal end (21-cm hair shaft length for the Maiden) indicate that all three children had ingested coca, as evidenced by levels of (A) BZE and (B) COC. Concurrent coca and alcohol use, particularly evident in the Maiden’s hair closest to death, is confirmed by (C) the presence of COCE and (D) based on CCOCE/CCOC (data are reproduced in Table S3).
