Carlsen E., Giwercman A., Keiding N., and Skakkeback NE (1992). Evidence for decreasing quality of semen during past 50 years. Brit. Med. J. 305: 609-613.
2.
Chapin RE, Ross JD, and Lamb JV (1984). Immersion fixation methods for glycol methacrylate-embedded testes. Toxicol. Path. 12: 221-227.
3.
Creasy DM (1997). Evaluation of testicular toxicity in safety evaluation studies: the appropriate use of spermatogenic staging. Toxicol. Path. 25: 119-131.
4.
Creasy DM and Foster PM (1991). Male reproductive system. In: Handbook of Toxicologic Pathology, W Haschek and CG Rousseaux (eds). Academic Press, San Diego, pp. 829-889.
5.
Farrow S. (1994). Falling sperm quality: fact or fiction? Brit. Med. J. 309: 1-2.
6.
James RW and Heywood R. (1979). Age-related variations in the testes and prostate of Beagle dogs. Toxicology12: 273-279.
7.
Kawakami E., Tsutsui T., and Ogasa A. (1991). Histological observations of the reproductive organs of the male dog from birth to sexual maturity. J. Vet. Med. Sci. 53(2): 241-248.
8.
Leblond CP and Clermont Y. (1952). Definition of the stages of the cycle of the seminiferous epithelium in the rat. Ann. NY Acad. Sci. 55: 548-573.
9.
Melnikow J., Keeffe JR, and Bernstein RL (1981). Carcinogens and mutagens in the undergraduate laboratory. J. Chem. Educ. 58: A11-A14.
10.
Milner CR and Goulder R. (1986). Comparative toxicity of chlorophenols, nitrophenols and phenoxyalkanoic acids to freshwater bacteria. Bull. Environ. Contam. Toxicol. 37(5): 714-718.
11.
Nolte T., Harleman JH, and Jahn W. (1995). Histopathology of chemically induced testicular atrophy in rats. Exp. Toxicol. Pathol. 47: 267-286.
12.
Purdom CE, Hardiman PA, Bye VJ, Eno NC, Tyler CR, and Sumpter JP (1994). Estrogenic effects of effluents from sewage treatment works. Chem. Ecol. 8: 275-285.
13.
Russell L. (1996). In: STP Newsletter, Summer.
14.
Russell LD, Ettlin RA, Sinha Hikim AP, and Clegg ED (1990). Histological and Histopathological Evaluation of the Testis. Cache River Press, Clearwater, FL.
15.
Sharpe RM and Skakkeback NE (1993). Are oestrogens involved in falling sperm counts and disorders of the male reproductive tract? Lancet341: 1392-1395.
16.
Takayama S. , Akaike M., Kawashima K., Takahashi M., and Kurokawa Y. (1995). A collaborative study in Japan on optimal treatment period and parameters for detection of male fertility disorders in rats induced by medical drugs . J. Am. Coll. Toxicol. 14: 266-292.
17.
Ulbrich B. and Palmer AK (1995). Detection of effects on male reproduction-A literature survey. J. Am. Coll. Toxicol. 14: 293-327.
18.
Whong WZ and Edwards GS (1984). Genotoxic activity of nitroaromatic explosives and related compounds in Salmonella typhimurium. Mutat. Res . 136: 209-215.
19.
Woodruff RC , Mason JM, Valencia R., and Zimmering S. (1985). Chemical mutagenesis testing in Drosophila. V. Results of 53 coded compounds tested for the National Toxicology Program. Environ. Mutagen . 7(5): 677-702.
20.
Zenick H., Clegg ED, Perrault SD, Klinefelter GR, and Grey LE (1996). Assessment of male reproductive toxicity. In: Principles and Methods of Toxicology, W Hayes (ed). Raven Press Ltd., New York, pp. 937-988.
