Roadmap to Innovation of HTA Methods (IHTAM): insights from three case studies of quantitative methods - Jiu, L; Wang, JF; Versteeg, JW; Zhang, YY; Liu, LF; Somolinos-Simón, FJ; Tapia-Galisteo, J; García-Sáez, G; Hogervorst, MA; Li, XY; Mantel-Teeuwisse, AK; Goettsch, WG (International Journal Of Technology Assessment In Health Care, 2024)