function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anistratenko, Olga Yu. & Degtyarenko, Elena V.', 2],
    ['Breure, Abraham S. H. & Tardy, Emmanuel', 3],
    ['Hansen, Thomas', 3],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 63],
    ['Ketwetsuriya, Chatchalerm & Karapunar, Baran', 6],
    ['Khalik, Mohd Zacaery & Hendriks, Kasper & Vermeulen, Jaap J.', 13],
    ['Lozouet, Pierre', 7],
    ['Marzuki, Mohammad Effendi bin & Liew, Thor-Seng', 5],
    ['Neubauer, Thomas A. & Wesselingh, Frank P.', 3],
    ['Pacaud, Jean-Michel', 3],
    ['Sands, Arthur F & Gloeer, Peter & Guerlek, Mustafa E', 15],
    ['Vermeulen, Jaap J. & Liew, Thor-Seng & Schilthuizen, Menno', 3],
    ['Wesselingh, Frank & Poorten, Jan Johan ter & Kijashko, Pavel', 4],
    ['Zacaery Khalik, Mohd & P. Hendriks, Kasper & J. Vermeulen, Jaap', 16],
    ['de Lima, Marcos Silva & Silva, Fernanda dos Santos', 3],
    ['Other (20)', 30]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=179)',
    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);