Nelems J M, McEwan J D, Thompson D W, Walker G R, Pearson F G
J Thorac Cardiovasc Surg. 1979 Apr;77(4):522-5.
Asymptomatic men exposed to nickel sulfide prior to 1963 were studied prospectively to investigate cytologic abnormalities in the sputum. We discovered a considerably greater incidence of squamous cell tumors that would have been expected from subjects exposed only to cigarette smoke.
对1963年以前接触过硫化镍的无症状男性进行了前瞻性研究,以调查痰液中的细胞学异常情况。我们发现,鳞状细胞肿瘤的发病率比仅接触香烟烟雾的受试者预期的要高得多。