Correction: Iron deficiency anemia, population health and frailty in a modern Portuguese skeletal sample.

[This corrects the article DOI: 10.1371/journal.pone.

Iron deficiency anemia, population health and frailty in a modern Portuguese skeletal sample.

Introduction: Portugal underwent significant political, demographic and epidemiological transitions during the 20th century resulting in migration to urban areas with subsequent overcrowding and issues with water sanitation. This study investigates population health during these transitions and interprets results within a framework of recent history and present-day public health information. We investigate skeletal evidence for anemia (cribra orbitalia and porotic hyperostosis) as indicators of stress and frailty-i.