Highlights Pricing threat may not be sustainable; service focus would be key differentiator Vijay Diagnostics - a play on regional healthcare needs Differentiated business model with broad range of offerings The stocks of most of diagnostic service companies have dropped more than 50 percent from their 52-week highs. Though the key reason is the COVID revenue cliff, even more crucial is the entry of new diagnostic service providers. These include some of the known names in the pharma industry such as Lupin, Mankind...