function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Adler, Peter H.', 1],
    ['Cerretti, Pierfilippo & Badano, Davide & Gisondi, Silvia', 11],
    ['Cerretti, Pierfilippo & Pape, Thomas', 3],
    ['Cerretti, Pierfilippo & Stireman III, John O. & Badano, Davide', 1],
    ['Cerretti, Pierfilippo & Ziegler, Joachim & Pape, Thomas', 3],
    ['Ebejer, Martin J. & Gatt, Paul', 1],
    ['Evenhuis, Neal L. & O’Hara, James E. & Pape, Thomas', 6],
    ['Kato, Daichi & Tachi, Takuji', 5],
    ['Mulieri, Pablo Ricardo & Patitucci, Luciano Damián', 2],
    ['Nihei, Silvio S.', 28],
    ['Nihei, Silvio S. & Andrade, Marcos R. & Pape, Thomas', 4],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 8],
    ['Panzer, Georg Wolfgang Franz', 1],
    ['Schlüsslmayr, Gerhard', 3],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 25],
    ['Other (3)', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=105)',
    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);