Correction: Expansion of social protection is necessary towards zero catastrophic costs due to TB: The first national TB patient cost survey in the Philippines

by Jhiedon L. Florentino, Rosa Mia L. Arao, Anna Marie Celina Garfin, Donna Mae G. Gaviola, Carlos R. Tan, Rajendra Prasad Yadav, Tom Hiatt, Fukushi Morishita, Andrew Siroka, Takuya Yamanaka, Nobuyuki Nishikiori