Regulatory Affairs Outsourcing Market, By Service Type (Regulatory Consulting and Legal Representation, Product Registration and Clinical Trial Applications, Regulatory Writing and Publishing, Regulatory Submission, Regulatory Operations, Others), By End User (Medical Device Companies, Pharmaceutical Companies, Biotechnology Companies), By Stage (Preclinical, Clinical, PMA), By Therapeutic Area (Oncology, Neurology, Cardiology, Immunology, Others), By Geography (North America, Latin America, Europe, Asia Pacific, Middle East & Africa)