1. Plantar warts;Glover;Foot & Ankle,1990
2. Nongenital warts: classification and treatment options;Bolton;Am Fam Physician,1991
3. Bridging the gap;Beutner;Arch Dermatol,1990
4. Plantar verrucous carcinoma;Swanson;Arch Dermatol,1980
5. The skin as a barrier;Scheuplein,1978