Could you tell me the number for ? <a href=" http://www.marymarygallery.co.uk/index.php/permethrin-10-percent-for-scabies.pdf ">permethrin ld50</a> Fitch Ratings has affirmed Portugal Telecom SGPS SA's (PT) Long-term Issuer Default Rating (IDR) of 'BBB-,' and affirmed the senior unsecured rating of the bonds issued by Portugal Telecom International Finance BV at 'BBB-.' The Outlook on the IDR remains Negative.