Paulsen, C. Alvin2008-10-172008-10-171970http://hdl.handle.net/1773/4332Biweekly seminal fluid sperm concentrations from one individual over a period of 120 weeks. During this period the individual received no medication and reported no periods of febrile illness. Dotted line indicates 20 million/ml which is generally considered to be the lower limit of normal range.en-USseminal fluidadultmalesperm countmedicationfebrile illnesssperm concentrationsImage