function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alves, Philippe Vieira & Chambrier, Alain de & Scholz, Tomáš', 2],
    ['De Chambrier, Alain & Gil de Pertierra, Alicia & P. O. & Ch-', 1],
    ['Lopes, Daniela A. & Mainenti, Adriana & Knoff, Marcelo', 37],
    ['Marick, Jit & Brabec, Jan & Choudhury, Anindo & Scholz, Tomáš', 2],
    ['Muniz-Pereira, Luís C. & Vieira, Fabiano M. & Luque, José L.', 1],
    ['Rambeloson, Voahirana R. & Ranaivoson, Hafaliana C.', 1],
    ['Rodriguez-Ibarra, Erick & Violante-Gonzalez, Juan & Monks, Scott', 3],
    ['Xue, Xiao-Feng & Song, Zi-Wei & Hong, Xiao-Yue', 6],
    ['Zaragoza-Tapia, Francisco & Pulido-Flores, Griselda', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=55)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);