This map shows the geographic impact of John Heng's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John Heng with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Heng more than expected).
This network shows the impact of papers produced by John Heng. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John Heng. The network helps show where John Heng may publish in the future.
Co-authorship network of co-authors of John Heng
This figure shows the co-authorship network connecting the top 25 collaborators of John Heng.
A scholar is included among the top collaborators of John Heng based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with John Heng. John Heng is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Sullivan, William F., et al.. (2019). Promoting health care decision-making capabilities of adults with intellectual and developmental disabilities.. PubMed. 65(Suppl 1). S27–S29.3 indexed citations
5.
Sullivan, William F., et al.. (2019). Supporting adults with intellectual and developmental disabilities to cope and thrive through transitions to later-life phases.. PubMed. 65(Suppl 1). S30–S32.4 indexed citations
6.
Sullivan, William F., et al.. (2019). Aging that includes an intellectual and developmental disability: A time to flourish?. PubMed. 65(Suppl 1). S5–S7.1 indexed citations
7.
Sullivan, William F. & John Heng. (2018). Supporting adults with intellectual and developmental disabilities to participate in health care decision making.. PubMed. 64(Suppl 2). S32–S36.14 indexed citations
8.
Sullivan, William F., John Heng, Luis Salvador‐Carulla, Sue Lukersmith, & Ian Casson. (2018). Approaches to primary care of adults with intellectual and developmental disabilities: Importance of frameworks for guidelines.. PubMed. 64(Suppl 2). S5–S7.8 indexed citations
9.
Sullivan, William F. & John Heng. (2016). Promoting Mental Health. The National Catholic Bioethics Quarterly. 16(4). 663–676.7 indexed citations
Sullivan, William F., Joseph M. Berg, Elspeth Bradley, et al.. (2011). Primary care of adults with developmental disabilities: Canadian consensus guidelines.. PubMed. 57(5). 541–53, e154.115 indexed citations
13.
Sullivan, William F., John Heng, Yona Lunsky, et al.. (2006). Consensus guidelines for primary health care of adults with developmental disabilities.. PubMed. 52(11). 1410–8.71 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.