"start undergoing" is a correct and usable expression in written English.
You can use it to describe a process that someone is beginning to undergo, for example, "John decided to start undergoing therapy to help him manage his anxiety."
Using time-course experiments we found that melanoma cells start undergoing apoptosis 72 h after the addition of TMZ to the medium.
As soon as RuvA function was impaired, gene sequence could start undergoing independent neutral evolution in each lineage derived from this ancestor (table 3), thereby reinforcing functional impairment and gene neutralization.
Qualitative data initially showed that adolescents from the age of 10 years and upward start undergoing a process of gradual independence from their parents, which manifest in many aspects including the tendency to sleep outside their parental houses.
Blair reportedly started undergoing the bizarre treatment after an operation on his knee last year.
Olausson said that woman was doing well, but he wasn't sure whether she had started undergoing fertility treatment.
Powered by a new turboprop engine, the Predator B has started undergoing tests using advanced sensors and weapons payloads, controlled by pilots on the ground operating instruments that "function as the aircraft cockpit," one document says.
The doctor — possibly the same one who later gave Kuczynski the yam lip — was ten years my senior, and had clear, translucent skin that glistened pinkly, like prosciutto that had been sliced to an inviting, tissue-paper thinness, and she said that if I, too, started undergoing facial peels I could have the complexion of a woman half my age by the time I hit forty).
The steel bars joining the two panels started undergoing the bar dowel action.
BlackBerry 10 first started undergoing carrier testing back in October, and by the end of the month Heins announced that more than 50 carriers had begun testing the veteran smartphone maker's new mobile OS.
Under these conditions, the material starts undergoing hydrolysis reactions (the kinetics is strongly dependent on the heating conditions) which occur in parallel or in series with many other processes (decarboxylation, dehydration, polymerization…) [3].
Arguably, many of these stocks started undergoing their own bear markets in late 2006, contributing to the weak advance/decline ratio technicals that we've recently seen even as the big-name indexes have climbed to new heights.
