The phrase "add in addition" is not correct and is redundant in written English.
You can use it when you want to emphasize the act of including something extra, but it is better to choose one of the terms instead.
Example: "We need to add in addition the new data to our report for a comprehensive analysis."
Alternatives: "add additionally" or "include furthermore".
And if you add in addition the amount that goes to charity, why the number gets well above twenty per cent.
But every year I've paid at least 13 percent, and if you add in addition the amount that goes to charity, why the number gets well above 20 percent".
Then, after suggesting that he had thus put Harry Reid, who had said he'd heard otherwise, in his place, Romney added, And if you add in addition the amount that goes to charity, why the number gets well above twenty per cent.
I do not have much to add in addition to what the authors have already said.
We add: "In addition, Prospero is unique among basal cell fate determinants in regulating neuroblast quiescence: loss of function mutations in numb or brat, or the Prospero target gene string, showed no effect on the timing of neuroblast quiescence (data not shown)".
Chloroxylenol (3%) was also added in addition to 70% isopropanol for preprocedure cleansing.
The following year, an additional twenty 25 mm guns were added in addition to six 28-round AA rocket launchers.
This backlog clearance adds an additional delay component that needs to be added in addition to the from (2).
she adds In addition, because federal laws prohibit NRSA recipients from receiving additional compensation from NIH funding sources, most principal investigators do not have the resources to provide benefits to the postdocs who write and receive these prestigious awards.
To determine whether the addition of Klebsiella would have an additive effect on our explants, 1×10 Klebsiella/ml was added in addition to 15 minutes of 0.5% dithizone treatment.
She added: "In addition we will be releasing up to 300 contractors, temporary workers and members of our complementary workforce".
