function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bidzilya, O. V.', 4],
    ['Hodgson, Chris & Miller, Dug', 1],
    ['Jesus, Priscila Barreto De', 1],
    ['MOGHADDAM, MASUMEH & WATSON, GILLIAN W.', 1],
    ['Paiano, Monica O. & Fumo, James T. & Cabrera, Feresa P.', 2],
    ['Stalažs, Arturs', 1],
    ['Szita, É. & Benedicty, Zs. & Kozár, F. & P. O', 2],
    ['de Clerck, Olivier & Coppejans, Eric & Schils, Tom', 3],
    ['y, González & Granara de, María C.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=17)',
    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);