1. Multidirectional differentiation in human epithelial cancers;Gould;J Submicrosc Cytol,1981
2. Neuroendocrine (Merkel) cells of the skin. Hyperplasias, dysplasias and neoplasms;Gould;Lab Invest,1985
3. Induction-dependent and cell lineage-dependent models for cell diversification are mutually exclusive;Holtzer,1985
4. Small cell carcinoma of the lung: cellular origin and relationship to other neoplasms;Tischler;Semin Oncol,1978