TY - CONF T1 - ACCOUNTING FOR STUDY HETEROGENEITY WHEN MODELLING THE MULTI-STATE NATURAL HISTORY OF RARE DISEASES JO - VALUE IN HEALTH PY - 2023/01/01 AU - Broomfield J AU - Crowther M AU - Freeman S AU - Abrams K AU - Latimer N AU - Rutherford MJ ED - VL - 26 IS - 12 SP - S421 EP - S422 Y2 - 2025/05/25 ER -