Phanikumar CV, Maitra B. Valuing urban bus attributes: an experience in Kolkata. J Public Transport. 2006;9(2):69-87. doi: 10.5038/2375-0901.9.2.4
Phani Kumar CV, Basu D, Maitra B. Modeling generalized cost of travel for rural bus users: a case study. J Public Transport. 2004;7(2):59-72. doi: 10.5038/2375-0901.7.2.4
Stahmer SA, Raps EC, Mines DI. Carotid and vertebral artery dissections. Emerg Med Clin North Am. 1997 Aug;15(3):677-98.
Mines D, Stahmer S, Shepherd SM. Poisonings: food, fish, shellfish. Emerg Med Clin North Am. 1997 Feb;15(1):157-77.
Clarkson T, Anthony MS, Hughes C. Estrogenic soybean isoflavones and chronic disease: risks and benefits. Trends Endocrinol Metab. 1995 Jan;6(1):11-6.