Soggetto
- Rogers, Carl1
- Rougier, Jacques1
- Sajfert, Milos1
- Schleich, Gustav1
- Schmidt, William1
- Schulze-Oben1
- Semans, Mary Duke Biddle Trent1
- Simon, Medgyes1
- Smet, Herman1
- Stead, Eugene A.1
- Stereotactic1
- Sternal, Stan1
- Stopfer, Hans1
- Strauss, Maurice J.1
- Stropus, G.1
- Students, Nursing1
- Surgical Instruments1
- Szel, Kantor1
- Technology1
- Thomas, Charles1