The phrase "additionally it has not" is correct and usable in written English.
It can be used to introduce an additional point or argument that emphasizes something that has not occurred or been done.
Example: "The project was delayed due to unforeseen circumstances; additionally, it has not received the necessary funding."
Alternatives: "furthermore, it has not" or "in addition, it has not".
Additionally, it had not previously been assayed whether the lung metastases originating in the MMTV-Cre-derived conditional KO females were derived from the recombined tumor cells or were generated from cells that had escaped recombination [ 27].
Additionally, to date, it has not been possible to isolate spontaneous mutants resistant to the combination of meropenem and clavulanate or faropenem under laboratory conditions, hinting at a low propensity for the development of resistance.
Additionally, it has focused not only on the role played by parents, but has broadened that perspective by including the involvement of older siblings as a form of family social capital.
Additionally, it has been shown that curcumin not only potentiated the antitumor effects of bortezomib and thalidomide, but also overcame chemoresistance to conventional myeloma therapy.
Additionally, I have not heard from a single constituent in South Texas who is in favor of giving up Net Neutrality," wrote Representative Vicente Gonzales (D-TX) in late November.
Additionally, New York has not adopted the 1990 revisions to the U.C.C.
Additionally, G.M. has not made anyone available to answer questions about the recall, offering only public statements and what it has filed with regulators.
Additionally, China has not yet developed national guidelines for lung and colorectal cancer screening, and scientific evidence from the Chinese population is needed to inform policy making.
Additionally, competition has not resulted in the exit of seemingly inefficient public providers.
