3049284 MPFR maximum phonational frequency range 8 3049283 MPFR medial pathway of the FR 2 3049282 MPFR modified pelvic floor reconstructive surgery with mesh 2 3049285 MPFR maximum peak flow rate 1 3049279 MPFR mRNA expression only in pups from food-restricted mothers 1 3049280 MPFR Multi-center Prototype Feature Distribution Reconstruction 1 3049281 MPFR myocutaneous pediculate flap reconstruction 1