Deena Zimmerman asked for the references about breast shells and Hoffman's
exercises being unhelpful for inverted nipples. They are:

Alexander JM, Grant AM & Campbell MJ "Randomised controlled trial of breast
shells and Hoffman's exercises for inverted and non-protractile nipples"
BMJ 304: 1030-1032 1992

The MAIN Trial Collaborative Group "Preparing for breast feeding: treatment
of inverted and non-protractile nipples in pregnancy" Midwifery 10: 200-214
1994

Joy Anderson IBCLC
Perth, Western Australia
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