...December 21, 2023 FRANKFURT (S&P Global Ratings) Dec. 21, 2023--S&P Global Ratings today withdrew its 'B-' long term issuer credit and issue ratings on Diaverum Holding S.a.r.l. and its senior secured first-lien term loan B. The outlook was stable at the time of the withdrawal. The withdrawal is at the issuer's request, following the redemption of its outstanding senior secured debt....