function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allgén, C. A.', 16],
    ['De Souza, João V. & Maria, Tatiana F.', 23],
    ['Gerber, K.', 11],
    ['Holovachov, Oleksandr', 360],
    ['Islam, Md Niraul & Ahmad, Wasim', 15],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 120],
    ['MAQSOOD AHMAD & M. SHAMIM JAIRAJPURI', 16],
    ['P. A. A. LOOF', 19],
    ['Poiras, Larisa', 20],
    ['Shahina, F. & Nasira, K. & Firoza, K. & Erum, Y. I.', 76],
    ['Thorne, Gerald & Swanger, Helen Heinly', 13],
    ['Wilhelm Schneider', 11],
    ['Zullini, A.', 14],
    ['Zullini, Aldo', 15],
    ['Árpád, Soós', 32],
    ['Other (88)', 256]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=1017)',
    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);