function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Aldrich, J. M.', 1],
    ['Dubatolov, V. V. & Zinchenko, V. K.', 1],
    ['El-Hawagry, Magdi S. & Abdel-Dayem, Mahmoud S.', 2],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 1],
    ['Hough, Garry de Nord', 1],
    ['Kurahashi, Hiromu & Selomo, Makmur', 1],
    ['Prado e Castro, Catarina & Szpila, Krzysztof', 4],
    ['Robineau-Desvoidy, André Jean Baptiste Dr.', 15],
    ['Rognes, Knut', 4],
    ['Rognes, Terry Whitworth With An Appendix By Knut', 13],
    ['Schlüsslmayr, Gerhard', 1],
    ['Tauhyl, Luís Gustavo Moreli & Marinho, Marco Antonio Tonus', 1],
    ['Whitworth, Terry', 4],
    ['Wolff, Marta & Kosmann, Cecilia', 3],
    ['Yang, Shih-Tsai & Kurahashi, Hiromu & Shiao, Shiuh-Feng', 3],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=56)',
    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);