Park EM, Wang M, Bowers SM, Muriel AC, Rauch PK, Edwards T, Yi SM, Daniel B, Hanson LC, Song M-K. Adaptation and psychometric evaluation of the parenting concerns questionnaire-advanced disease. Am J Hosp Palliat Care. 2021 Oct 7. doi: 10.1177/10499091211049801
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
Pring CM, Skelding-Millar L, Goodall RJ. Expectant treatment or cholecystectomy after endoscopic retrograde cholangiopancreatography for choledocholithiasis in patients over 80 years old? Surg Endosc. 2005 Mar;19(3):357-60.
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