two articles from LLLI, both well-referenced:

Roche-Paull, R. Body Modification and Breastfeeding: What You Need to Know. New Beginnings, 2009, 29(4), pp. 4-8.

Roche-Paull, R., & Spicer, K. Are Tattoos Compatible with Breastfeeding?. Leaven, 2005; 41(1), 3, 4.

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