function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Franco, José Carlos & Russo, Agatino & Marotta, Salvatore', 1],
    ['Gavrilov-Zimin, I. a.', 1],
    ['Granara de, María C. & Willink & González, Patricia', 20],
    ['Hodgson, Chris', 5],
    ['Hodgson, Chris J. & Łagowska, Bozena', 3],
    ['Martin, Jon H. & Lau, Clive S. K.', 1],
    ['Meurgey, François & Ramage, Thibault', 1],
    ['Mifsud, David & Mazzeo, Gaetana & Russo, Agatino', 3],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 3],
    ['Moghaddam, Masumeh', 6],
    ['Novoa, Nereida Mestre & Hamon, Avas & Evans, Greg', 2],
    ['Pellizzari, Giuseppina & Porcelli, Francesco', 1],
    ['Stalažs, Arturs', 2],
    ['Suh, Soo-Jung & Son, Ah-Ram', 2],
    ['Williams, D. J.', 5],
    ['Other (6)', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=62)',
    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);