function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Balsamo, Maria & Pierboni, Lara & Grilli, Paolo', 8],
    ['Chatterjee, Tapas & Priyalakshmi, Geetha & Todaro, M. Antonio', 43],
    ['Chatterjee, Tapas & Todaro, M. Antonio', 40],
    ['Garraffoni, Andre R. S. & Araujo, Thiago Q. & Lourenco, Anete P.', 7],
    ['Hummon, William D.', 17],
    ['Hummon, William D. & Todaro, Antonio', 7],
    ['Kolicka, Małgorzata', 19],
    ['Kolicka, Małgorzata & Kisielewski, Jacek & Nesteruk, Teresa', 22],
    ['Križanová, Františka Rataj & Vďačný, Peter', 10],
    ['Kånneby, Tobias', 52],
    ['Lee, Jimin & Chang, Cheon Young', 7],
    ['Lee, Jimin & Kim, Dongsung & Chang, Cheon Young', 7],
    ['Schwank, Peter & Kånneby, Tobias', 22],
    ['Suzuki, Takahito G. & Maeda, Masako & Furuya, Hidetaka', 7],
    ['Todaro, M. Antonio & Zotto, Matteo Dal & Bownes, Sarah J.', 7],
    ['Other (32)', 68]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=343)',
    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);