function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brauer, Friedrich & Von Bergenstamm, J. E.', 1],
    ['EVENHUIS, NEAL L. & PONT, ADRIAN C.', 1],
    ['Ebejer, Martin J. & Gatt, Paul', 1],
    ['El-Hawagry, Magdi S. & Abdel-Dayem, Mahmoud S.', 6],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 4],
    ['Kurahashi, Hiromu', 1],
    ['Kurahashi, Hiromu & Bunchu, Nophawan', 1],
    ['Kurahashi, Hiromu & Kirk-Spriggs, Ashley H.', 17],
    ['Kurahashi, Hiromu & Tan, Siew Hwa & Leh, Moi Ung', 1],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 2],
    ['Rognes, Knut', 5],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 6],
    ['Thomas-Cabianca, Arianna & Martinez-Sanchez, Anabel', 5],
    ['Thomas-Cabianca, Arianna & Villet, Martin H.', 81],
    ['Yang, Shih-Tsai & Kurahashi, Hiromu & Shiao, Shiuh-Feng', 22],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=155)',
    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);