function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bohlen, Jörg & Šlechtová, Vendula & Udomritthiruj, Kamphol', 1],
    ['Cao, Liang & Zhang, E.', 1],
    ['Chen, Meng-Fang & Myint, Khin Mar & Chu, Ling & Chen, Xiao-Yong', 2],
    ['Chen, Z. - M. & Yang, J. - X. & Qi, W. - L.', 1],
    ['Choudhury, Hrishikesh & Dey, Abhinit & Bharali, Ratul Ch.', 1],
    ['Endruweit, Marco', 3],
    ['Freyhof, J. & Serov, D. V.', 8],
    ['Kottelat, Maurice', 53],
    ['Lokeshwor, Y. & Vishwanath, W.', 3],
    ['Maurice Kottelat', 18],
    ['McClelland, J.', 6],
    ['Mirza, M. R. & Nalbant, Teodor T. & Bànàrescu, P. M.', 6],
    ['Nalbant, Teodor T. & Bianco, P. G.', 2],
    ['Sudasinghe, Hiranya', 2],
    ['Vidthayanon, Chavalit & Kottelat, Maurice', 2],
    ['Other (22)', 22]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=131)',
    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);