Physical Therapy and Master of Science in Physical Therapy degrees are no longer offered, and the entry-level degree is the Doctor of Physical Therapy degree, which typically takes 3 years after completing a bachelor's degree. PTs who hold a Masters or bachelors in PT are encouraged to get their DPT because APTA's goal is for all PT's to be on a doctoral level. WCPT recommends physical therapist entry-level educational programs be based on university or university-level studies, of a minimum of four years, independently validated and accredited. Curricula in the United States are accredited by the Commission on Accreditation in Physical Therapy Education (CAPTE). According to CAPTE, there are 31,380 students currently enrolled in 227 accredited PT programs in the United States while 12,945 PTA students are currently enrolled in 331 PTA programs in the United States. (Updated CAPTE statistics list that for 2015–2016, there were 30,419 students enrolled in 233 accredited PT programs in the United States.) The physical therapist professional curriculum includes content in the clinical sciences (e.g., content about the cardiovascular, pulmonary, endocrine, metabolic, gastrointestinal, genitourinary, integumentary, musculoskeletal, and neuromuscular systems and the medical and surgical conditions frequently seen by physical therapists). Current training is specifically aimed to enable physical therapists to appropriately recognize and refer non-musculoskeletal diagnoses that may present similarly to those caused by systems not appropriate for physical therapy intervention, which has resulted in direct access to physical therapists in many states. Post-doctoral residency and fellowship education prevalence is increasing steadily with 219 residency, and 42 fellowship programs accredited in 2016. Residencies are aimed to train physical therapists in a specialty such as acute care, cardiovascular & pulmonary, clinical electrophysiology, faculty, geriatrics, neurology, orthopaedics, pediatrics, sports, women's health, and wound care, whereas fellowships train specialists in a subspecialty (e.g. critical care, hand therapy, and division 1 sports), similar to the medical model. Residency programs offer eligibility to sit for the specialist certification in their respective area of practice. For example, completion of an orthopedic physical therapy residency, allows its graduates to apply and sit for the clinical specialist examination in orthopedics, achieving the OCS designation upon passing the examination. Board certification of physical therapy specialists is aimed to recognize individuals with advanced clinical knowledge and skill training in their respective area of practice, and exemplifies the trend toward greater education to optimally treat individuals with movement dysfunction. Physical therapist assistants may deliver treatment and