function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Allgén, C. A.', 7],
    ['Bastian, Henry Charleton', 1],
    ['Bohra, P. & Sanyal, A. K. & Hussain, A. & Mitra, B.', 1],
    ['Elshishka, Milka & Mladenov, Aleksandar & Lazarova, Stela', 1],
    ['Holovachov, Oleksandr', 52],
    ['Holovachov, Oleksandr & Boström, Sven', 1],
    ['Khudhir, Manda & Hodda, Mike & Nicholas, Evelyn', 1],
    ['Menzel, Rich.', 1],
    ['P. A. A. LOOF', 10],
    ['Tahseen, Qudsia & Mustaqim, Malka', 5],
    ['Thorne, Gerald', 3],
    ['Von W. Schneider', 6],
    ['Wilhelm Schneider', 5],
    ['Zullini, Aldo', 4],
    ['Árpád, Soós', 10],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=111)',
    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);