"has developed largely" is a correct and usable phrase in written English.
You can use it when describing something that has undergone significant growth or progress. For example: "In the past decade, the technology industry has developed largely, with the introduction of new devices and groundbreaking innovations." Another example: "Thanks to advancements in medicine, life expectancy has developed largely, allowing people to live longer and healthier lives."
So a new postcode lottery for treatments has developed, largely unreported.
The middle class has developed largely in relation to the country's petroleum wealth and recent European immigration.
Chad has a growing local NGO community that has developed largely as a result of the planning and internal interaction surrounding the oil project.
The village has developed largely because of Projeto Tamar's pioneering preservation project, which has helped shape Brazil's approach to wildlife and the environment.
In China, it is not enough merely to please the masses.China's television business has developed largely in isolation from the rest of the world.
Critical attention has eluded Mr. Bean, 77, though he has developed, largely through word of mouth, a following among private collectors who pay up to $175,000 for one of his works.
National payments systems have developed largely independently of each other, with their designers giving little thought to getting money from one country to another.
However, electronic tag technologies and stock assessment models have developed largely independently, and frameworks for incorporating these valuable data in contemporary stock assessments are nascent, at best.
We take this as evidence that the three fields, although they share research topics and themes, have developed largely on their own and in relative isolation from one another.
From Tito Puente's mambo dance rhythms to the Spanglish rap of Mellow Man Ace, American Sabor focuses on musical styles that have developed largely in the United States-including jazz, rhythm and blues, rock, punk, hip hop, country, Tejano, and salsa-but also shows the many ways in which Latin@ musicians and styles connect US culture to the culture of the broader Americas.
Historically, logic-based approaches to automated classification and cheminformatics approaches have developed largely independently.
