I'm renting out the second room in my 2 bedroom apartment, available for as little as 1 month - as long as you'd like. The apartment is located on a safe and quiet street in Sunset Park, 2 blocks from the 9th Avenue subway station (home of the D train to Manhattan). Apartment is fully furnished (as would be your room) - standard stuff: desk, lamp, alarm clock, fan and so much closet space. The apartment is pretty roomy and I'm sure you'll find it comfy to live in - I've lived here for 3 years now and haven't had any problems.

To give you an idea of distances to hospitals --
Maimonides Medical Center: 10 minute walk
Lutheran Medical Center: 30 minute walk, 15 minutes by bus (close by)
Brooklyn Hospital: 15 minutes by subway (It's 2 stops on the D train from 9th Avenue to Atlantic terminal)
Methodist Hospital: 25 minutes by Subway/walking (Sunset park is next door to Park Slope)
Coney Island Hospital: ~40 minutes by subway/bus
Woodhull Medical Center: ~40 minutes by subway

All utilities are included (heat, water, gas, electricity, internet); $250 / week. Pretty decent street parking during the day, after about 8pm it's hit or miss. Male or female students welcome.

If you have questions, would like pictures or anything else - just send me a message and I'm happy to respond. Thanks!