According to the Google Scholar, his papers has been cited 25,611 times and has an h-index of 90 as of April 19, 2013.
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Itis indexed with Caspur, CINAHL, DOAJ, EBSCO, Excerpta Medica/EMBASE, Expanded Academic ASAP, JournalSeek, Google Scholar, Health & Wellness Research Center, Health Reference Center Academic, Hinari, Index Copernicus, Indian Science Abstracts, OpenJGate, PubMed, SCOLOAR, SIIC databases, and Ulrich's Periodicals Directory.
The journal is indexed with Abstracts on Hygiene and Communicable Diseases, CAB Abstracts, Caspur, CINAHL, DOAJ, EBSCO, EMCARE, Expanded Academic ASAP, JournalSeek, Global Health, Google Scholar, Health & Wellness Research Center, Health Reference Center Academic, Hinari, Index Copernicus, OpenJGate, PubMed, SCOLOAR, SIIC databases, Tropical Diseases Bulletin, and Ulrich's Periodicals Directory.
It has been repeatedly included in relevant surveys and comparisons in the field (according to Google Scholar, Elsevier's Scopus and Thomson ISI's Web of Knowledge), e.g., Brian Henderson-Sellers and Paolo Giorgini (2005) or Beydoun et al. (2009).
It is indexed by Abstracts on Hygiene and Communicable Diseases, CAB Abstracts, Caspur, CINAHL, DOAJ, EBSCO, Expanded Academic ASAP, JournalSeek, Global Health, Google Scholar, Health & Wellness Research Center, Health Reference Center Academic, Hinari, Index Copernicus, Journal Citation Reports, OpenJGate, Science Citation Index Expanded, SCOLOAR, Scopus, SIIC databases, and Ulrich's Periodicals Directory.
It is indexed with Caspur, DOAJ, EBSCO Publishing’s Electronic Databases, Excerpta Medica/EMBASE, Expanded Academic ASAP, JournalSeek, Global Health, Google Scholar, Health & Wellness Research Center, Health Reference Center Academic, Hinari, Index Copernicus, Index Medicus for South-East Asia Region, Indian Science Abstracts, IndMed, MANTIS, MedInd, OpenJGate, ProQuest, PubMed, SCOLOAR, SIIC databases, and Ulrich's Periodicals Directory.
A 2010 paper by Cyril Labbe from Grenoble University demonstrated the vulnerability of h-index calculations based on Google Scholar output by feeding it a large set of SCIgen-generated documents that were citing each other (effectively an academic link farm).
Google Scholar Citations reports his most-cited works to include his paper on Vector Autoregressions with Olivier Blanchard and his papers on the convergence of Twin Peaked income distributions.