function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Borkent, Art', 4],
    ['Brahma, Shubhranil & Chatterjee, Somnath & Hazra, Niladri', 5],
    ['Bächli, Gerhard & Merz, Bernhard & Haenni, Jean-Paul', 4],
    ['Dominiak, Patrycja & Alwin, Alicja', 17],
    ['Dominiak, Patrycja & Szadziewski, Ryszard', 62],
    ['Díaz, Florentina & Spinelli, Gustavo R. & Donato, Mariano', 10],
    ['Díaz, Florentina & Spinelli, Gustavo R. & Ronderos, María M.', 8],
    ['El-Hawagry, Magdi S. & El-Azab, Salah El-Din A.', 11],
    ['Grogan, William L. & Díaz, Florentina & Spinelli, Gustavo R.', 13],
    ['Grogan, Willliam L. & Díaz, Florentina & Spinelli, Gustavo R.', 28],
    ['Sinclair, Bradley J.', 7],
    ['Strandberg, Jonas & Johanson, Kjell Arne', 25],
    ['Torreias, S. R. S. & Ferreira-Keppler, R. L. & Ronderos, M. M.', 5],
    ['William L. Grogan, Jr. & Hribar, Lawrence J.', 11],
    ['Xian, Chunlan & Leong, Chi Man & Luo, Jiuyang & Jia, Fenglong', 7],
    ['Other (14)', 20]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=237)',
    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);