The paper presents a analysis of quantitative and qualitative dimensions of global research output (3488 records) on "Impact of COVID-19 on Children and Adolescents" , based on indexed publications in Scopus database. The global publications on this theme averaged 8.31 citations per paper. About 1.49% share of its total publications in this area received external funding support. The 145 countries partcipitated in global research output on "Impact of COVID-19 on Children and Adults" , of which the top 10 countries accounted for 85.21% and more than 100% share of global publications and citations. The USA, U.K. and Italy leads in global publications ranking and productivity as against China (3.16), U.K (1.28) and USA (1.27) leading in terms of relative of relative citation index. The 412 organizations and 661 authors participated in global research on this theme, with top 15 most productive organizations and authors contributing 21.07% and 4.30% global publications share and 38.05% and 12.98% global citations share. Harvard Medical School, USA, Huazhong University of Science and Technology, China and Tongji Medical College, China leads the world as the most productive organizatons (with 480, 67 and 63 publications) and Huazhong University of Science and Technology, China (31.97 and 3.85), Tongji Medical College, China (19.92 and 2.40) and Children Hospital of Philadelphia, USA (19.30 and 2.32) leading as the most impactful organizations in the world in terms of citation per paper and relative citation index. D.Buonsensov, C.Calvo and X. Lu were the most productive authors (with 15, 12 and 12 papers) and X.

A quantitative and qualitative assessment of global research output (2016) on the "Rhodiola rosea" plant based on select bibliometric indicators, using Scopus database covering period 1993-2018, is presented here. Analyzed data on a series of bibliometric measures, like average annual growth, citations per paper, international collaborative papers, relative citation index, activity index, top productive countries, organizations, authors, journals and highly cited papers. The global publications registered an annual average growth rate of 12.97% and its citation impact averaged to 17.59 citations per paper. China and USA together account for more than 36% share of global output on Rhodiola rosea, whereas other 8 top ranking countries accounted each for global share between 4.06% and 7.60% during 2003-18. 83.04% global publication share and 89.95% global citation share has been contributed by top 10 countries during 2003-18. Sweden (2.78), Canada (1.17) and USA (1.11) registered the highest relative citation index among top 10 countries during 2003-18. Swedish Herbal Institute, Askloster, Sweden (21 papers), Medical University of Warsaw, Poland (14 papers), Corvinus University of Budapest, Hungary were the three the most productive organizations and Z. Gyorgy and A. Panossian (18 papers each) and G. Wikman (14 papers) were the three top most productive authors. Phytomedicine (25 papers), Phytotherapy Research (21 papers) and Evidence-based Complementary and Alternate Medicine (15 papers) were the three leading journals contributing research in this area.

The present study examines 579 Indian publications on "Migraine" research as covered in Scopus database during 2006-15, experiencing an annual growth rate of 17.37%, citation impact per paper of 8.32, international collaborative publication share of 9.80% and global publication share of 2.56%. The global publications share on "Migraine" came from several countries, of which the top 10 most productive countries accounted for 75.30% share of global publications output during 2006-15. A large number of Indian organizations and authors participated in Indian research on "Migraine" research during 2006-15, of which the top 15 organizations and 15 authors contributed 31.26% and 25.22% publications share and 70.50% and 23.50% citation share respectively of the Indian output and citations. Medicine, among subjects, contributed the largest publications (63.90%), followed by pharmacology, toxicology & pharmaceutics (34.72%), neurosciences (14.16%), biochemistry, genetics & molecular biology (13.64%) and chemistry (3.97%) during 2006-15. Indian publications on migraine research appeared in several journals, of which the top 15 journals contributed 32.64% share of the India's output. The top 14 highly cited papers registered 53 to 1087 citations, and together contributed 2094 citations, leading to the average citation per paper of 149.57. Concludes that there is an urgent need to frame a national policy in this area, undertake more R&D and recognize migraine research as a public health problem and allocate more healthcare funds in this area.

The present study examined 1432 global publications on Andrographis paniculata plant, as indexed in Scopus bibliographical and citation database during 2003-18, with a view to understand their growth rate, global publication share, citation impact, international collaborative papers share, distribution of publications by broad subjects, productivity and citation profile of top organizations and authors, preferred media of communication and bibliographic characteristics of high cited papers. The global publications registered an annual average growth rate of 10.03% and its citation impact averaged to 16.78 citations per paper. Amongst 73 participitating countries on the subject, the top 10 countries contributed 96.93% global publication share and 98.17% global citation share during 2003-18. India alone contributed the global share of 46.13%, followed by China and Malaysia (together 23.39% global share) and other top 7 countries have global share ranged from 1.96% to 6.63% during 2003-18. Four countries among top 10, registered world average of 17.0 citation per paper and 1.01 relative citation index: U.K. (45.89 and 2.73), Taiwan (32.27 and 1.92), USA (30.65 and 1.83) and Thailand (22.87 and 1.36) during 2003-18. Pharmacology, toxicology and pharmaceutics contributed the largest publications share of 50.98%, followed by medicine biochemistry, genetics and molecular biology, agricultural and biological sciences and chemistry (from 13.41% to 33.24%) and immunology and microbiology, environment science and veterinary science (from 2.30% to 7.05%) during 2003-18. Among 301 organizations and 413 authors contributing to global Andrographis paniculata research, the 15 most productive global organizations and authors together contributed 22.07% and 10.75% global publication share and 23.66% and 11.35% global citation share respectively during 2003-18. Universiti Putra Malaysia (55 papers), Mahidol University, Thailand (31 papers) and Universiti Sains Malaysia (28 papers) were the leading contributing organizations. D. Talei and A.Valdiani (17 papers each) and A.E. Nugroho (13 papers) were the leading productive authors. Journal of Ethnopharmacology (with 54 papers), International Journal of Pharmacy and Pharmaceutical Sciences (31 papers) and Phytotherapy Research (27 papers), were the three leading journals contributing research on this subject. Amongst 1413 journal papers (in 145 journals) in global Andrographis paniculata research, the top 15 most productive journals contributed 22.36% share of total journal publication output during 2003-18. Thirty Eight publications were found to be high cited, as they registered citations from 102 to 842 during 2003-18 and they together received 6356 citations, which averaged to 164.63 citations per paper.

The present study examined 962 global publications on Aegle marmelos, as covered in Scopus database during 2004-18, with a view to understand its growth rate, global share, citation impact, international collaborative papers share, distribution of publications by broad subjects, productivity and citation profile of top organizations and authors, preferred communication media and characteristics of high cited papers. Aegle marmelos global output registered 36.37% annual growth and averaged 16.0 citations per paper during the period. 43 countries participated in the global Aegle marmelos research output during 2004-18, of which the top 10 most productive countries contributed 98.97% global publication share and more than 100.0% global citation share. India alone contributed 82.30% of the global publication share, while all other 9 top countries contributed from 1.34% to 3.29% during 2004-18. Pharmacology, toxicology and pharmaceutics was the most followed subject with 47.71% global share, followed by medicine (29.0%), biochemistry, genetics and molecular biology (22.35%), agricultural and biological sciences (21.41%), etc. during 2004-18. Top 15 productive organizations and authors accounted for 19.65% and 12.79% global publications share and 22.85% and 21.30% global citations share in global Aegle marmelos research output. Top 15 most productive journals accounted for 19.68% of global publication share in journals. Only 32 publications registered high citations with 100-427 citations per paper and collectively averaging to 166.56 citations per paper. Suggest that the above analysis will help the policy-makers and scholars to explore the full potential of Aegle marmelos in preventing and treating diseases and also to identify future research areas in this field.