to concentrate efforts concentrate exclusively concentrate fire concentrate for solution for infusion concentrate for solution for injection concentrate for solution concentrate longer concentrate more concentrate on anything concentrate on creating concentrate on developing concentrate on doing concentrate on driving concentrate on ensuring concentrate on finding concentrate on getting concentrate on implementing concentrate on improving concentrate on it concentrate on making concentrate on me concentrate on my work concentrate on one thing concentrate on one concentrate on promoting concentrate on providing concentrate on something concentrate on the essentials concentrate on the game concentrate on the job concentrate on the moment concentrate on the road to concentrate on work concentrate on work concentrate on your breathing concentrate on your studies concentrate on your work concentrate only to concentrate our efforts concentrate production to concentrate resources concentrate solely to concentrate the mind to concentrate their efforts concentrate vial concentrate well concentrated acids concentrated amounts concentrated areas concentrated aroma concentrated attention concentrated beam concentrated blend concentrated butter concentrated control concentrated dark matter concentrated detergent concentrated dose concentrated effort concentrated energy concentrated essential oil concentrated expression concentrated extract concentrated feed concentrated focus concentrated formula concentrated form concentrated fruit concentrated grape juice concentrated grape must concentrated grape concentrated heat concentrated here concentrated hydrochloric acid concentrated in areas concentrated in cities concentrated in europe concentrated in one place concentrated in regions concentrated in the hands concentrated in urban areas concentrated juice concentrated light concentrated load concentrated marketing concentrated market concentrated milk concentrated mixture concentrated mostly concentrated nitric acid concentrated ownership concentrated powder concentrated power concentrated primarily concentrated product concentrated serum concentrated solar energy concentrated solar power concentrated solution concentrated source concentrated sulfuric acid concentrated sulphuric acid concentrated treatment concentrated urine concentrated wealth concentrated work concentrated concentrates concentrate concentrating resources concentrating concentration affects concentration at work concentration camp inmates concentration camp prisoners concentration camps to concentration camps to a concentration camp concentration camp concentration can concentration changes concentration courses concentration degree concentration difficulties concentration game concentration gradient concentration has concentration in the blood concentration in the body concentration in the media concentration in the plasma concentration index concentration levels concentration level concentration limits concentration measurement concentration meter concentration monitoring concentration must concentration of activities concentration of aid concentration of alcohol concentration of assistance concentration of attention concentration of calcium concentration of capital concentration of carbon dioxide concentration of carbon monoxide concentration of economic power concentration of efforts concentration of energy concentration of forces concentration of funding concentration of funds concentration of glucose concentration of greenhouse gases concentration of hormones concentration of hydrochloric acid concentration of industry concentration of lead concentration of liquids concentration of media ownership concentration of nitric oxide concentration of nutrients concentration of ownership concentration of oxygen concentration of particles concentration of people concentration of political power concentration of pollutants concentration of population concentration of power concentration of production concentration of proteins concentration of resources concentration of salt concentration of serotonin concentration of supply concentration of testosterone concentration of the active substance concentration of the drug concentration of the solution concentration of the substance concentration of vitamin concentration of water concentration of wealth concentration power concentration problems concentration process concentration range concentration ratio concentration remains concentration skills concentration values concentration within the meaning concentration-dependent concentration-time concentrations exceeding concentrations in plasma concentrations may