The phrase "and he subsequently completed" is correct and usable in written English.
It can be used to indicate that someone finished a task or activity after a certain point in time.
Example: "After several weeks of hard work, he submitted his report, and he subsequently completed the project ahead of schedule."
Alternatives: "and he later finished" or "and he then accomplished".
He subsequently completed medical school and neurosurgical residency in Winnipeg at the University of Manitoba.
He subsequently completed a law degree and became an officer in the gendarmerie of the Kingdom of Serbs, Croats and Slovenes at the beginning of 1928.
He subsequently completed a radiology residency at Albert Einstein Medical Center(Philadelphia, Pennsylvania) and Musculoskeletal Radiology Fellowship at Mayo Clinic(Rochester, Minnesota).
He subsequently completed a postdoctoral fellowship in psychiatric epidemiology from Columbia University.
He subsequently completed a four-part TV series, The Four Sisters, again examining the experiences of Holocaust survivors.
He subsequently completed a research fellowship in motor control in the Center of Neurobiology and Behavior at Columbia and a clinical fellowship in stroke at the Neurological Institute at Columbia University Medical Center.
He subsequently completed all coursework in Rutgers University's MBA program in professional accounting to enable him to sit for the November 1986 Uniform Certified Public Accountancy examination, on which he received an Elijah Watts Sells Award for high distinction (top 0.1%).
Dr. Ingrid Pirker-Binder studied international business and education in Vienna and subsequently completed psychotherapeutic training in Existential Analysis and Logotherapy on the basis of the Viktor Frankl model.
He graduated from Cerrahpaşa Medical School, Istanbul University in 1988 and subsequently completed a Specialization in Orthopaedics and Traumatology at the Medical School of Istanbul, Istanbul University, and Fellowships at Baltimore Sinai Hospital, Maryland, USA and University of British Columbia, Vancouver, Canada.
Participants' pushup capacity and submaximal treadmill exercise tolerance were measured at the start of the study, and each man subsequently completed annual physical examinations and health and medical questionnaires.
