function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alston, Arthur Hugh Garfit', 1],
    ['Brause, Guido Georg Wilhelm', 1],
    ['Brook, Fred J. & Ablett, Jonathan D.', 2],
    ['Christ, Konrad Hermann Heinrich', 1],
    ['Copeland, Edwin Bingham', 3],
    ['Do, Duc Sang & Do, Van Nhuong', 1],
    ['Foon, Junn Kitt & Clements, Gopalasamy Reuben & Liew, Thor-Seng', 3],
    ['Inkhavilay, Khamla & Sutcharit, Chirasak & Bantaowong, Ueangfa', 8],
    ['Jirapatrasilp, Parin & Ablett, Jonathan D. & Panha, Somsak', 4],
    ['Marzuki, Mohammad Effendi bin & Liew, Thor-Seng', 1],
    ['Nantarat, Nattawadee & Sutcharit, Chirasak & Tongkerd, Piyoros', 52],
    ['Sutcharit, Chirasak & Thach, Phanara & Chhuoy, Samol', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=79)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);