Doreen Killens PT, FCAMT, is a physical therapist with 38 years of clinical experience and is a specialist in the field of orthopedic physical therapy. A McGill University graduate, she received her FCAMPT qualifications in 1991 (specialization in manual therapy). For 25 years she was an instructor for the Canadian Orthopaedic Manipulative Division of the Canadian Physiotherapy Association, teaching manual therapy courses across Canada. In addition, she is an Examiner (and former Chief Examiner) for the same association. She is presently in private practice in Montreal and has a particular interest in the field of headaches and myofascial dysfunction. She has developed postgraduate courses on Mobilisation of the Myofascial System (MMS) (Levels 1, 2 and 3), as well as a two-level course system entitled Manual Therapy for the Cranium, which she teaches across Canada and Europe, both in English and in French.