function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Araújo, Thiago Quintão & Balsamo, Maria', 1],
    ['Atherton, Sarah & Hochberg, Rick', 1],
    ['Chatterjee, Tapas & Priyalakshmi, Geetha & Todaro, M. Antonio', 19],
    ['Hochberg, Rick', 2],
    ['Hochberg, Rick & Atherton, Sarah', 1],
    ['Hummon, William D.', 6],
    ['Hummon, William D. & Todaro, Antonio', 5],
    ['Kieneke, Alexander & Todaro, M. Antonio', 4],
    ['Lee, Jimin & Chang, Cheon Young', 5],
    ['Lee, Jimin & Chang, Cheon Young & Kim, Il-hoi', 1],
    ['Lee, Jimin & Kim, Dongsung & Chang, Cheon Young', 7],
    ['Todaro, Antonio', 1],
    ['Todaro, M. Antonio', 2],
    ['Todaro, M. Antonio & Perissinotto, Renzo & Bownes, Sarah J.', 1],
    ['Todaro, M. Antonio & Zotto, Matteo Dal & Bownes, Sarah J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);