function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Beasley, Clark W. & Miller, William R.', 3],
    ['Dey, Pritam K. & Gąsiorek, Piotr & Michalczyk, Łukasz', 4],
    ['Fontoura, Paulo & Pilato, Giovanni & Lisi, Oscar', 9],
    ['Guil, Noemí', 6],
    ['Gąsiorek, Piotr', 3],
    ['Gąsiorek, Piotr & Vončina, Katarzyna', 21],
    ['Kaczmarek, Łukasz', 32],
    ['Kaczmarek, Łukasz & Michalczyk, Łukasz & Mcinnes, Sandra J.', 45],
    ['Kiosya, Yevgen & Voncina, Katarzyna & Gasiorek, Piotr', 3],
    ['Li, Xiao-Chen & Wang, Da-Yong & Wang, Li-Zhi', 6],
    ['Li, Xiaochen', 5],
    ['Li, Xiaochen & Wang, Lizhi & Liu, Ying & Su, Lina', 3],
    ['Michalczyk, Łukasz & Kaczmarek, Łukasz', 5],
    ['Pilato, Giovanni & Binda, Maria Grazia & Lisi, Oscar', 6],
    ['Roszkowska, Milena & Stec, Daniel & Ciobanu, Daniel Adrian', 4],
    ['Other (25)', 42]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=197)',
    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);