>  I have
>seen it referred to as P-i-S and P-in-S.  I realize that what one of the
>respondents to Lactnet was doing was to avoid using a product reference,
>but please, as the professionals we wish to be known as, don't use the
>acronym  "PIS".

I believe the manufacturer prefers "PNS", which is what I use for the
above reasons.

-Lisa Marasco, BA, IBCLC