function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Canbulat, Savaş', 3],
    ['ENGEL, MICHAEL S. & GRIMALDI, DAVID A.', 2],
    ['Ferro, Michael L.', 16],
    ['Grimaldi, David & Engel, Michael S. & Nascimbene, Paul c.', 2],
    ['Guo, Mingxia & Xing, Lida & Wang, Bo & Zhang, Weiwei', 8],
    ['Hassan, Muhammad Asghar & Oswald, John D. & Zia, Ahmed', 11],
    ['Liu, Xingyue & Lu, Xiumei', 3],
    ['Liu, Zhi-Qi & Yang, Chi-Kun & Shen, Zuo-Rui', 8],
    ['Ruzickova, Dominika & Nel, Andre & Prokop, Jakub', 4],
    ['Sarmiento-Cordero, Mariza Araceli & Contreras-Ramos, Atilano', 5],
    ['Tillier, Pierre', 4],
    ['Zhao 1, Yaru & Li *, Ying & Li, Min & Liu, Zhiqi', 3],
    ['Zhao, Yaru & Badano, Davide & Liu, Zhiqi', 3],
    ['Zhao, Yaru & Li, Ying & Liu, Zhiqi', 4],
    ['Zhao, Yaru & Sziraki, Gyoergy & Liu, Zhiqi', 3],
    ['Other (8)', 13]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=92)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);