A reference guide on multidirectional cognitive development for children aged up to 3 years Emotional / social milestones Language / communication milestones Learning / thinking / problem-solving milestones Red flags for cognitive developmental problem... 1 min read ReferenceWNSC Hong Kong This content is for registered users only. Registration is free and reserved for healthcare professionals. Connect with Facebook Connect with Google Connect with LinkedIn REGISTER LOGIN Email address Enter your Wyeth Nutrition Science Center Middle East username. Password Enter the password that accompanies your username. Keep me signed in Forgot your password? Reset it.