title: Primum non nocere: active surveillance for clinical stage I testicular cancer.
authors.affiliation: Abramson Cancer Center of the University of Pennsylvania, Philadelphia, PA david.vaughn@uphs.upenn.edu.
authors.forename: David J
authors.initials: DJ
authors.lastname: Vaughn
mesh_terms: D000293:Adolescent; D006801:Humans; D008297:Male; D009367:Neoplasm Staging; D009919:Orchiectomy; D017410:Practice Guidelines as Topic; D012196:Review Literature as Topic; D018239:Seminoma / Q000097:blood / Q000175:diagnosis* / Q000601:surgery; D013736:Testicular Neoplasms / Q000097:blood / Q000175:diagnosis* / Q000601:surgery; D000509:alpha-Fetoproteins / Q000378:metabolism
chemical_list: D000509:alpha-Fetoproteins