Question: The men's ice hockey that won seven national championships while Emil Iverson was coach won how many NCAA national championships?

Context articles: David Marsh (swimming coach)
North Dakota State Bison football
Jim Calhoun
Minnesota Golden Gophers men's ice hockey
Godfrey Matheson
Mercyhurst Lakers
Denver Pioneers men's ice hockey
Emil Iverson
List of Big Ten Conference national championships
Florida Gators swimming and diving

David Marsh (born December 29, 1957) is the Head Coach of Team Elite Carolina in Charlotte, N.C. Prior to founding Team Elite he was the men's and women's swimming coach at Auburn University.
 He has been in this role since 2007.
 Prior to joining SwimMAC he was the men's and women's swimming coach at Auburn University.
 After becoming head coach in 1990, Marsh led the men's team to seven NCAA national championships (1997, 1999, 2003, 2004, 2005, 2006, and 2007) and the women's team to five national championships (2002, 2003, 2004, 2006, 2007).
 He finished his coaching career at Auburn at the conclusion of the 2007 season, after which he became the Head Elite Coach and CEO of the United States Olympic Committee Center of Excellence with SwimMAC Carolina.
 To date Marsh has led SwimMAC to three consecutive USA club excellence championships, a first for any programs, out distancing the second-place finisher by 12,000 points (see www.usaswimming.org).
The North Dakota State Bison football program represents North Dakota State University in college football at the NCAA Division I Football Championship Subdivision level and competes in the Missouri Valley Football Conference.
 The Bison play in the 19,000 seat Fargodome located in Fargo, ND.
 The Bison have won 13 National Championships and 33 Conference Championships and won five-consecutive NCAA Division I-FCS National Championships between 2011 and 2015.
 NDSU is the only college football program to ever win five consecutive NCAA national championships.
 In regards to overall record, post-season play, and titles won over the past 5 years; the NDSU Bison Football program is known as one of the greatest dynasties in college football history.
James A. Calhoun (born May 10, 1942) is the former head coach of the University of Connecticut men's basketball team.
 His teams won three NCAA national championships (1999, 2004, 2011), played in four Final Fours (most recently in 2011), won the 1988 NIT title, and seven Big East tournament championships (1990, 1996, 1998, 1999, 2002, 2004, 2011).
 With his team's 2011 NCAA title win, the 68-year-old Calhoun became the oldest coach to win a Division I men's basketball title.
 He won his 800th game in 2009 and finished his career with 873 victories, ranking 12th all-time as of Feb. 2015.
 Calhoun is one of only six coaches in NCAA Division I history to win three or more championships and is widely considered one of the greatest coaches of all time.
 In 2005, he was inducted into the Basketball Hall of Fame.
The Minnesota Golden Gophers men's ice hockey team is the college ice hockey team at the Twin Cities campus of the University of Minnesota.
 They are members of the Big 10 Conference and compete in National Collegiate Athletic Association (NCAA) Division I ice hockey.
 The Golden Gophers have won five NCAA national championships, in 1974, 1976, 1979, 2002 and 2003.
 The team also shared the 1929 National Intercollegiate Athletic Association championship with Yale.
 and captured the national Amateur Athletic Union (AAU) championship for amateur hockey in 1940.
 The Gophers are currently coached by Don Lucia.
 Under Don Lucia the Gophers earned a spot in the NCAA tournament in eight seasons during a nine-year time span, including five number 1 seeds and three appearances in the Frozen Four.
 The team's main rivalries are with the University of Wisconsin and the University of North Dakota, although several other schools claim Minnesota as their archrival.
Godfrey Arthur Matheson (October 29, 1881 – January 20, 1978) was a Canadian ice hockey coach.
 Matheson was head coach of the Chicago Black Hawks for one season, 1932–33, along with Emil Iverson.
 He attempted to innovate coaching by using a whistle system; One whistle to pass, two for a shot etc.
The Mercyhurst Lakers, representing Mercyhurst University which is located in Erie, Pennsylvania, are composed of 24 teams in intercollegiate athletics, including men's and women's basketball, cross country, golf, ice hockey, lacrosse, rowing, soccer, tennis, and water polo.
 Men's sports include baseball, football, and wrestling.
 Women's sports include field hockey, softball, and volleyball.
 The Lakers compete in the NCAA Division II and are members of the Pennsylvania State Athletic Conference (PSAC) for all sports except ice hockey, which competes in NCAA Division I, and water polo, a sport in which the NCAA holds single all-divisions national championships for men and women.
 The men's ice hockey team is a member of Atlantic Hockey, while the women's ice hockey team is a member of College Hockey America.
 The men's water polo team plays in the Collegiate Water Polo Association, and the women's water polo team plays in the Western Water Polo Association.
The Denver Pioneers men's ice hockey team is a National Collegiate Athletic Association (NCAA) Division I college ice hockey program that represents the University of Denver.
 The Pioneers are a member of the National Collegiate Hockey Conference (NCHC).
 They play at Magness Arena in Denver, Colorado.
 The Pioneers are tied with North Dakota for second in all-time NCAA National Hockey Championships with eight (1958, 1960, 1961, 1968, 1969, 2004, 2005, 2017) trailing only Michigan with nine.
 Since the creation of the Western Collegiate Hockey Association in 1959, the Pioneers have won 9 WCHA Regular Season Championships (now the recipients of the MacNaughton Cup) and 14 WCHA Playoff Championships (now the recipients of the Broadmoor Trophy).
 About 75 Pioneers have gone on to play in the National Hockey League, including Keith Magnuson, Kevin Dineen, Matt Carle (2006 Hobey Baker Award winner) and Paul Stastny.
Emil W. Iverson (1893February 21, 1960) was a Danish-American ice hockey player and coach and anthropologist.
 The Minnesota Gopher Hockey Team won seven national championships while Emil was coach.
 His training programs were so ahead of the times, that some are still used today.
 Iverson was head coach of the Chicago Black Hawks for one season, 1932–33, along with Godfrey Matheson.
The list of Big Ten national championships includes championships won by teams from the Big Ten Conference and former member Chicago.
 Including football champions listed in the official "NCAA Records" book, Big Ten teams have compiled 286 NCAA championships (as of May 29, 2017) during their years of membership.
 Prior to NCAA sponsorship of women's sports, Big Ten teams, as members of the AIAW, also won 6 undisputed national championships in 1976–1982.
 In the 2016-17 academic year, Big Ten members have so far won four titles: (1) Penn State won the school's seventh NCAA national championship in wrestling giving the Big Ten Conference eleven consecutive championships between four different schools (Minnesota, Iowa, Penn State,and Ohio State;).
 This continues a run for the school of winning at least one NCAA championship every year since the 2006–2007 academic year; (2) Ohio State won its second-consecutive championship in men's volleyball.
 This continues a run for the school of winning at least one NCAA championship every year since the 2010–2011 academic year; (3) Maryland won its NCAA-record thirteenth national championship in women's lacrosse; and (4) Maryland won its first NCAA men's lacrosse since 1975 and the first for the conference.
The Florida Gators swimming and diving program represents the University of Florida in the aquatics sports of swimming and diving.
 The program includes separate men's and women's teams, both of which compete in Division I of the National Collegiate Athletic Association (NCAA) and the Southeastern Conference (SEC).
 The Gators host their home meets in the O'Connell Center Natatorium on the university's Gainesville, Florida campus, and are currently led by head swimming coach Gregg Troy and diving coach Bryan Gillooly.
 In the eighty-four-year history of the Gators swimming and diving program, the men have won thirty-seven SEC team championships and two NCAA national championships; the Lady Gators have won seventeen SEC team championships and three national championships.