title: Shadow method for sun protection.
authors.forename: L
authors.initials: L
authors.lastname: Holloway
mesh_terms: D055580:Astronomical Phenomena; D001256:Astronomy; D006801:Humans; D013471:Sunburn / Q000517:prevention & control*; D013997:Time Factors; D014466:Ultraviolet Rays / Q000009:adverse effects*