title: Erratum to: Respiratory consequences of N95-type Mask usage in pregnant healthcare workers-a controlled clinical study.
abstract: [This corrects the article DOI: 10.1186/s13756-015-0086-z.].
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Pearl Shuang Ye
authors.initials: PS
authors.lastname: Tong
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Anita Sugam
authors.initials: AS
authors.lastname: Kale
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Kailyn
authors.initials: K
authors.lastname: Ng
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Amelia Peiwen
authors.initials: AP
authors.lastname: Loke
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Mahesh Arjandas
authors.initials: MA
authors.lastname: Choolani
authors.affiliation: Lee Kong Chian School of Medicine, Nanyang Technological University, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Chin Leong
authors.initials: CL
authors.lastname: Lim
authors.affiliation: Biostatistics Unit, National University of Singapore, Singapore, Republic of Singapore.
authors.forename: Yiong Huak
authors.initials: YH
authors.lastname: Chan
authors.affiliation: Department of Obstetrics and Gynecology, National University Hospital, 11 Mandalay Road, Singapore, 308232 Singapore.
authors.forename: Yap Seng
authors.initials: YS
authors.lastname: Chong
authors.affiliation: Medicine, National University of Singapore, 1E Kent Ridge Road, Level 12, Singapore, 119228 Singapore.
authors.forename: Paul Anantharajah
authors.initials: PA
authors.lastname: Tambyah
authors.affiliation: Medicine, National University of Singapore, 1E Kent Ridge Road, Level 12, Singapore, 119228 Singapore.
authors.forename: Eu-Leong
authors.initials: EL
authors.lastname: Yong