Frequent exposure to suboptimal temperatures in vaccine cold-chain system in India: results of temperature monitoring in 10 states oleh Manoj V Murhekar, Srihari Dutta, Ambujam Nair Kapoor, Sailaja Bitragunta, Raja Dodum, Pramit Ghosh, Karumanagounder Kolanda Swamy, Kalyanranjan Mukhopadhyay, Somorjit Ningombam, Kamlesh Parmar, Devegowda Ravishankar, Balraj Singh, Varsha Singh, Rajesh Sisodiya, Ramaratnam Subramanian, Tana Takum