Apert syndrome is a genetic disorder characterized by the premature fusion of certain skull bones (craniosynostosis). This early fusion prevents the skull from growing normally and affects the shape of the head and face. In addition, a varied number of fingers and toes are fused together (syndactyly).
Business Schengen Visa. Business visa is an authorization of the designated country/countries of destination within the Schengen Area issued to the citizens of countries that have mandatory visa requirements from the Schengen Zone with the sole purpose of doing business in the designated Schengen country/countries.
A visa is an official 'permit' authorizing you to enter the USA, for a specific reason and for a specified period of time. There are many different types of visas / permits and depending on the nature of your visit to the USA (e.g. travel, study, work), this will decide which is the most appropriate visa / permit for you.