Usage of steroids and other doping products by basketball players

The director general of the WADA David Howman notes that the National Basketball Association (NBA) anti-doping program is not good enough to catch those that apply prohibited medications. He states that drug testing conducted in the NBA is not suitable. While the NFL and the MLB accepted additional tests, the NBA refused to do the same things.
Derrick Rose, a former basketball player, also confirmed that many NBA players took steroids and other related products. This sport is tainted, according to the former basketball player. It is believed that David Howman’s opinion connected with application of steroids in the NBA is resulted from words said by the former basketball player.
The NBA doesn’t agree to adopt its anti-doping policy to that of the WADA. The NBA officers state that steroids and other related medications don’t have capacity to influence on games and make them unfair. They confirm that just natural abilities and trainings play role in the NBA. According to NBA officers, steroids and other performance-enhancing drugs can’t enhance performance of basketball players. They say that performance-enhancing drugs don’t benefit this sport.
Do NBA officers have a correct point of view? Aren’t steroids and other related products able to enhance performance of those that play basketball? What do facts show? What does scientific literature state about effects of steroids and other performance-enhancing drugs?
Actually, everybody knows that steroids and certain other medicines benefit in any sport. They just should be taken properly and accompanied by suitable meal and trainings. These products play significant role in sports. It is impossible to doubt about effectiveness of steroids and other doping products in basketball. Statements of NBA officers are ridiculous.
Undoubtedly, any league likes to think that their sport is not tainted. Nevertheless, it is needed to see the reality. That’s why David Howman states that it is necessary to conduct more and more sophisticated steroid testing in order to catch those who use banned medications.