1. Collagen injection therapy for urinary incontinence;Appell;Urol Clin North Am,1994
2. Periurethral injection of collagen in the treatment of intrinsic sphincter deficiency in the female patient;Winters;Urol Clin North Am,1995
3. Periurethral collagen injections for patients with stress incontinence;Goldenberg;J Urol,1994
4. Endourologic control of incontinence with GAX collagen;Appell;J Endourol,1992
5. Selection of patients with intrinsic sphincter deficiency for treatment with collagen. Can we do better?;Liu;J Urol,1994