function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Anlaş, S.', 4],
    ['Anlaş, S. & A. F', 1],
    ['Assing, V. & Schülke, M. & M. R & A. S', 1],
    ['Assing, Volker & Schülke, Michael & Brachat, Volker', 4],
    ['Brunke, Adam J. & Marshall, Stephen A.', 2],
    ['Gravenhorst, Johann Ludwig Christian', 1],
    ['Japoshvili, George & Khachikov, Eduard', 1],
    ['Majka, Christopher & Klimaszewski, Jan', 1],
    ['Navarrete-Heredia, José Luis & Gómez-Rodríguez, Cecilia', 3],
    ['Pentinsaari, Mikko & Anderson, Robert & Borowiec, Lech', 1],
    ['Samin, N. & Zhou, H. & Sakenin, H. & Imani, S. & Rastegar, J.', 1],
    ['Schülke, M.', 3],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 4],
    ['V, Alexey & V, Alexander & Barševskis, Arvids', 1],
    ['Webster, Reginald P. & Sweeney, Jon D. & DeMerchant, Ian', 5]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=33)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);