"an additional focus" is grammatically correct and can be used in written English.
It can be used to describe something that is being emphasized or given extra attention in addition to an already existing focus. Example: The teacher's lesson plan had an additional focus on critical thinking skills, in addition to the main focus on reading comprehension.
"Pilots to improve dental services with an additional focus on improving the oral health of children will begin in April".
Its smartphone app took the idea mobile, with an additional focus on news stories with "no depressing news or graphic content".
'We recommend that this is an additional focus of research in the action plan and that in the meantime, government takes action to ensure the use of antibiotics in farm animals is strictly required for therapeutic use," the committee said.
The bank's memo said that, in his new role, he would "provide strategic capital raising advice to our most senior Asian clients, with an additional focus on high-profile, cross-border situations".
The current study was designed to investigate this proposal with an additional focus on the role of reinforcement expectancies.
The games, championed by Prince Harry, have given them an additional focus to their lives, many say.
Previous research has indicated that both boys and girls strive for a slim body, with boys having an additional focus on a muscular body build.
The use of the Nintendo Wii has been postulated as a novel rehabilitation tool that adds an additional focus on balance and proprioception into the recovery protocol.
The present study was designed to investigate the effect of AMH on the viability and proliferation of Sertoli cells, with an additional focus on stem cell factor (SCF).
It has been overcome by use of additional blowers and the use of them is an additional focus of the presented analysis.
The United Nations notes that there was "an additional focus on empowerment of persons with disabilities in planning for risk management and resilience" (UNISDR 2015b).
