Complex sentence: In 1973 he became Chair of the Committee of Inquiry into the Regulation of the Medical Profession (reporting in 1975) whose recommendations were largely incorporated in the 1978 Medical Practitioners Act.
Split into simpler sentences: In 1973 he became Chairman of the Committee of Inquiry into the Regulation of the Medical Profession. Reporting in 1975 its recommendations were largely incorporated in the 1978 Medical Practitioners Act.