Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Cash Flows (Unaudited)

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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash flows from operating activities:    
Net loss $ (3,517,453) $ (3,660,151)
Adjustments to reconcile net loss to net cash flows from operating activities:    
Depreciation and amortization 55,418 65,824
Share-based compensation 607,124 429,026
Expenses paid through the issuance of common stock 77,500 502,032
(Gain) loss from change in fair value of derivative liabilities (42,023) 61,739
Amortization of debt issuance costs and original issue discounts 272,858 201,243
Increase (decrease) in cash resulting from changes in:    
Accounts receivable 178,629 115,182
Inventory, net (337,807) (68,312)
Prepaid expenses and other current assets (128,823) (135,485)
Other assets 1,001
Accounts payable and accrued expenses (197,888) (279,435)
Deferred revenue (41,477) 202,784
Net cash flows from operating activities (3,072,941) (2,565,553)
Cash flows from investing activities:    
Purchases of property and equipment (51,497) (3,134)
Net cash flows from investing activities (51,497) (3,134)
Cash flows from financing activities:    
Proceeds from private offering, net of offering costs 11,993,496
Proceeds from warrant exercises 531,977
Net cash flows from financing activities 531,977 11,993,496
Net change in cash and cash equivalents (2,592,461) 9,424,809
Cash and cash equivalents, beginning of period 9,289,831 3,315,774
Cash and cash equivalents, end of period 6,697,370 1,969,597
Cash paid for:    
Income taxes
Interest $ 146,000 $ 146,611