Objectives: The tackle event in rugby union ('rugby') contributes to the majority of players' injuries. Referees can reduce this risk by sanctioning dangerous tackles. A study in elite adult rugby suggests that referees only sanction a minority of illegal tackles. The aim of this study was ...
AN illegal trade in human eggs is booming in Beijing, targeting university students who can sell their eggs at prices ranging from several to tens of thousands of yuan. Brokers charging high commission arrange the whole process from the sellers to recipients including physical checks and surgery, ...