DCR procedures

Could you please answer the following questions: What is the number of DCR procedure in the USA We are a start up company that develops an innovative device for DCR procedures and in order to start animal feasibility trials we would like to know what is the smallest animal that is best for our study. I thank you in advance regards, Elisabeth Sadka. .

SHALOM Please try the internet for the US data on DCR' as well as for the animals Dr. Gaton