Somratai VadcharavivadWarangkana SaengramAnnop PhupraditNalinee PoolsupWiwat ChancharoenthanaThammasat University HospitalChulalongkorn UniversityFaculty of Medicine, Ramathibodi Hospital, Mahidol UniversityMahidol UniversitySamrejvittaya School2020-01-272020-01-272019-12-01Drugs. Vol.79, No.18 (2019), 196311791950001266672-s2.0-85076061048https://repository.li.mahidol.ac.th/handle/20.500.14594/51277© 2019, The Author(s). Table 1 Characteristics of the included observational studies. The row for study Jelassi et al. (2011) [28], where the Observational Period for ER-Tac reads June 2007–March 2010a and for IR-Tac reads N/A. The row should read: Observational period for ER-Tac June 2007–March 2010a. Where the footnote a indicates that Information was reported only for the overall population. Page 4, left-hand column, first sentence of first new paragraph, which currently reads: ‘To evaluate publication bias, a funnel plot was constructed by plotting the MD of the primary outcome against the standard error (SE) of the MD.’ Should read: ‘To evaluate publication bias, a funnel plot was constructed by plotting the RR of the primary outcome against the standard error (SE) of the logarithm of RR.’ Page 10, left-hand column, second sentence of second paragraph, which currently reads: ‘Only the I2 of Scr reported within 6 months post-KT was higher than 25% (58%), indicating a moderate variance in the observed BPAR rate among various included studies.’ Should read: ‘Only the I2 of Scr reported within 6 months post-KT was higher than 25% (58%), indicating a moderate variance in the observed Scr among various included studies.’ The original article has been corrected.Mahidol UniversityMedicineCorrection to: Once-Daily versus Twice Daily Tacrolimus in Kidney Transplantation: A Systematic Review and Meta-analysis of Observational Studies (Drugs, (2019), 79, 18, (1947-1962), 10.1007/s40265-019-01217-7)ErratumSCOPUS10.1007/s40265-019-01232-8