ESR1 gene polymorphism (rs827421) as a potential genetic marker for constitutional delay of growth and puberty in Egyptian adolescents.

Constitutional delay of growth and puberty (CDGP) is a variant of normal pubertal timing and progress. It is the most common form of delayed puberty in both genders. The genetic director of CDGP is ill-understood despite the positive family history result noted in those patients.

Knowledge, Attitude and Practice toward COVID-19 among Egyptians.

COVID-19 is a public Health Emergency of International Concern. The aim of this work was to assess the level of Knowledge, Attitude and Practice (KAP) among Egyptians toward COVID-19. A cross-sectional study was conducted from March 1st to April 1st, on 3712 participants of different ages and sex.