function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alwin-Kownacka, Alicja & Szadziewski, Ryszard & Szwedo, Jacek', 11],
    ['Borkent, Art', 1],
    ['Dominiak, Patrycja & Alwin, Alicja & Giłka, Wojciech', 4],
    ['Dominiak, Patrycja & Szadziewski, Ryszard', 2],
    ['Huerta, Herón & Borkent, Art', 1],
    ['Huerta, Herón & Spinelli, Gustavo R.', 2],
    ['Spinelli, Gustavo & Wolff, Marta', 5],
    ['Spinelli, Gustavo R. & Borkent, Art & Ronderos, María M.', 2],
    ['Spinelli, Gustavo R. & Cazorla, Carla G.', 2],
    ['William L. Grogan, Jr. & Hribar, Lawrence J.', 2],
    ['William L. Grogan, Jr. & Spinelli & Ronderos, María M. & Carla', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=35)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 11, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);