Objective To review and appraise the validity and usefulness of published and preprint
reports of prediction models for prognosis of patients with covid-19, and for detecting people …

Background Tibolone is a synthetic steroid used for the treatment of menopausal symptoms,
on the basis of short‐term data suggesting its efficacy. We considered the balance between …

Background During a cycle of in vitro fertilisation plus intracytoplasmic sperm injection
(IVF/ICSI), women receive daily doses of gonadotropin follicle‐stimulating hormone (FSH) to …

The firefly luciferase protein contains a peroxisomal targeting signal at its extreme COOH
terminus (Gould et al., 1987). Site-directed mutagenesis of the luciferase gene reveals that …

The ripening-impaired tomato mutant Never-ripe (Nr) is insensitive to the plant hormone
ethylene. The gene that cosegregates with the Nr locus encodes a protein with homology to …

Abstract Ethylene (C2H4) is a gaseous hormone that affects many aspects of plant growth
and development. Ethylene perception requires specific receptors and a signal transduction …

The aromas of fruits, vegetables, and flowers are mixtures of volatile metabolites, often
present in parts per billion levels or less. We show here that tomato (Lycopersicon …

Mutant plants defective in the assimilation of nitrate can be selected by their resistance to the
herbicide chlorate. In Arabidopsis thaliana, mutations at any one of nine distinct loci confer …

Machine learning methods, combined with large electronic health databases, could enable
a personalised approach to medicine through improved diagnosis and prediction of …

Background Endometrial scratching (with the use of a pipelle biopsy) is a technique
proposed to facilitate embryo implantation and increase the probability of pregnancy in …