function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Eagderi, Soheil & Mouludi-Saleh, Atta & Esmaeili, Hamid Reza', 4],
    ['Esmaeili, Hamid Reza & Hamidan, Neshat', 3],
    ['Esmaeili, Hamid Reza & Teimori, Azad & Gholami, Zeinab', 3],
    ['Fowler, Henry Weed', 3],
    ['Freyhof, Jörg & Yoğurtçuoğlu, Baran', 6],
    ['Gaudant, Jean', 3],
    ['Gianferrari, L.', 3],
    ['Golani, Daniel', 3],
    ['José L. Blanco & Tomas Hrbek & Ignacio Doadrio', 4],
    ['Miller, R. R.', 6],
    ['Nurettin Meriç & Lütfiye Eryilmaz & Müfit Özulug', 5],
    ['Parenti, Lynne R.', 8],
    ['Sayyadzadeh, Golnaz & Esmaeili, Hamid Reza', 4],
    ['Schulz-Mirbach, Tanja & Reichenbacher, Bettina', 8],
    ['Tchernavin, V. V.', 6],
    ['Other (57)', 79]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=148)',
    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);