Global Smart Insulin Pen Market, By Product (Smart Insulin Pens, Adaptors for Conventional Pens, Disposable, Reusable), Type (First Generation Pens, Second Generation Pens), Usability (Prefilled, Reusable), Connectivity Type (Bluetooth, USB), Application (Type 1 Diabetes, Type 2 Diabetes), Distribution Channel (Hospital Pharmacies, Online Sales, Retail Pharmacies, Diabetes Clinics / Centers) – Industry Trends and Forecast to 2029