Objective To analyze the outputof hotliteratures on pharmacology & toxicology in the world .Methods Es-sential Science Indicators Database were retrievedandthe national distribution ,published journals and hot research topics of hot literatures were analyzed .Results There were 76 papers in ESI on pharmacology & toxicology ,which were publishedin 22 countries or regions ,involved 5 hot research topics .Conclusion The influence of hot literatures on pharmacology & toxicology from China was behind European and American countries .Chinese journals should focus on the hot research on pharmacological& toxicology and improve the influence and scope of journals .

Objective To get a more comprehensive knowledge of the Chinese Journal of Nautical Medicine and Hyperbaric Medicine through analysis of the bibliometric data published in the journal from 2009 -2013,so that readers will have a profound knowledge of the journal and it will also facilitate the editorial board to improve the academic level of the journal by drawing experience from others.Methods With the scientific papers published in the journal from 2009-2013 as research subjects,in reference to " the Citation Report of the China Science and Technology Journals" between the years of 2010-2014,and through the approach of bibliometrics,statistical analyses were made on the amount of papers published,the citation frequency,influential factors,foundation thesis ratio,regional distribution and other data in recent 5 years.Results With regard to the amount of papers published,the yearly amount tended to decrease year by year,but with that of 2013 increased slightly.(2)Concerning citation frequency,total citation frequency on the whole tended to increase year after year,i.e.the yearly index of 2011 increased considerably,but the indexes of 2012-2013 tended to be stable.(3)With respect to influential factors,the factors derived from the 2000-2011 issues were relatively low,but the influential factors in the 2012 and 2013 issues were increased quite considerably.(4)With respect to foundation thesis ratio,the highest value of 2012 was 0.38,while the lowest value of 2013 was 0.128.As could be seen,there was great fluctuation.(5)Concerning regional distribution,the papers published in the journal in the recent 5 years were from about 90 institutions or organizations of 20 provinces,autonomous regions and municipalities directly under the central government.(6)The average number of authors per paper each year was over 4.Conclusions The Chinese Journal of Nautical Medicine and Hyperbaric Medicine is the only core periodical in the fields of nautical medicine,hyperbaric oxygen and diving medicine,and is also an important platform for physicians,scholars and research workers to exchange knowledge and experience in these fields.Bibliometric statistics and analysis of the papers published in the recent 5 years definitely reflect the development status and trend of the journal,which is of great significance to better improvement in the work of the editorial department and further progress in development of the discipline as well.

Objective To get a more comprehensive knowledge of the Chinese Journal of Nautical Medicine and Hyperbaric Medicine through analysis of the bibliometric data published in the journal from 2009 -2013,so that readers will have a profound knowledge of the journal and it will also facilitate the editorial board to improve the academic level of the journal by drawing experience from others.Methods With the scientific papers published in the journal from 2009-2013 as research subjects,in reference to " the Citation Report of the China Science and Technology Journals" between the years of 2010-2014,and through the approach of bibliometrics,statistical analyses were made on the amount of papers published,the citation frequency,influential factors,foundation thesis ratio,regional distribution and other data in recent 5 years.Results With regard to the amount of papers published,the yearly amount tended to decrease year by year,but with that of 2013 increased slightly.(2)Concerning citation frequency,total citation frequency on the whole tended to increase year after year,i.e.the yearly index of 2011 increased considerably,but the indexes of 2012-2013 tended to be stable.(3)With respect to influential factors,the factors derived from the 2000-2011 issues were relatively low,but the influential factors in the 2012 and 2013 issues were increased quite considerably.(4)With respect to foundation thesis ratio,the highest value of 2012 was 0.38,while the lowest value of 2013 was 0.128.As could be seen,there was great fluctuation.(5)Concerning regional distribution,the papers published in the journal in the recent 5 years were from about 90 institutions or organizations of 20 provinces,autonomous regions and municipalities directly under the central government.(6)The average number of authors per paper each year was over 4.Conclusions The Chinese Journal of Nautical Medicine and Hyperbaric Medicine is the only core periodical in the fields of nautical medicine,hyperbaric oxygen and diving medicine,and is also an important platform for physicians,scholars and research workers to exchange knowledge and experience in these fields.Bibliometric statistics and analysis of the papers published in the recent 5 years definitely reflect the development status and trend of the journal,which is of great significance to better improvement in the work of the editorial department and further progress in development of the discipline as well.